One of our runs was in a doc wagon facility, where there were patients as well as staff and security. Once the GM knew where we were going to be operating, he did some rolls and scripted out where people were going to be and when they would go elsewhere...

This way it wouldn't be any random "doc steps into the hallway and sees you picking the lock". He knew ahead of time when they would come out, and where they would go, unless of course something we did drew them to react differently. I appreciated this, because then we knew (or at least felt secure) that our GM wasn't going to randomly screw us over, it was part of the planned scene. It takes a little more work, but it made it run smoother.

The GM obviously didn't think ahead that if he kept reacting to the PCs and the PCs kept reacting to him it would take all night.

I don't feel like it was the best debunk ever, but that is just my opinion. I think though maybe through the typed word there is something that is lacking as to why it was funny. Many players can see baloney when it is coming, but it's harder to be a good GM on the fly when your players do something unexpected. Yeah the GM sure pulled something out of his butt, but I think it is such a lame thing to call someone on it when given the situation other GM's might have done something similar. Maybe it wouldn't have been as lame, but come on people.

I play with a really awesome GM who is inventive, creative, and we always end up having a good time. He does a good job of letting us know when we are getting railroaded, but it's done in such a way that does not piss off the party. It is hard to find a GM of that caliber... so freekin' hard. At one point we did a run on a facility and we were shocked to get in and out of the facility without raising any alarms or encountering any resistance. His response was "Well there were times you could have gotten caught but you guys did so well, didn't make any screw ups, and any potential event I gave you you just quietly slid past without making a fuss." That is GMing done well. We got caught at one point right as we were leaving the complex due to a guard making a lucky perception check while we finally decided not to fly under the radar as janitors (long story.) At the same time he makes the game cinematic and funny when need be. I couldn't do what he does. I would like to think I can, but I can't.

*edit* on a side note the best debunk I ever saw was (with a different GM) when our team of runners was chasing after a boat, and so finally when we catch up with them some of the people dive off of the side of the boat. Somehow the face of the party convinces the paranoid infultration specialist to check out the boat. After he disables a few of the gun turrets he realizes that maybe he should get the hell off of the boat. He radio's the team and says "Um... I don't think I should be on the boat so I'm gonna' get off." The boat was set to explode the minute it detected any com chatter on the boat itself (actually set up by the GM before hand.) He left the boat on fire and proceeded to spend all of his edge and plopped in the water where the flying mage had to stabilize him before he ate it (was 2 P away.)

I'm not sure how any of these things are a "debunk".

thank you kind sir

Meet mister GM man of that session.

o ya i remember a time some gm got "debunked". it went like this:

fat leader of compound mage guy: you punks are gonna die for getting this far. this is the ULTIMATE SPELL!!!!!!
*giant ball of mana forms at his hands* (perception yields that it is a force 10 nova spell)

XERO : DIE!!!!!!
*unsheathes sword, slashes fatman in half, and resheathes sword in one clean iajutsu movement* ( lol i rolled all combat pool)

GM: BAWWWWWWWWWWW!!!!!!!!!!!!!

or how about this one:

Requiem:w00t i have cult i will kill u!!

Shadowrunners:JACKPOT!!!!!!!!!!!!!!

ahhh good times

lol i thought it was funny

You might be right, but normally this sort of thing requires a bit more finesse. The computer didn't have to EXPLODE for chrissakes. Short out, turn off, but a random explosion? If it was done for humor - well fine then. But if it was supposed to be an actual "serious" repercussion... meh.

I think a better way of breaking it would've been if the mage in the party had the control animal spell, and just had the creature eat the company man, before going back to sleep.

The GM was an idiot who thought he was playing 1st edition D&D. In Shadowrun dramatic villian showdowns don't work because of the lethality of the combat system.

It really just calls for some common sense. Suppose you wanted to suicide bomb (let's replace the nova spell with a backpack filled with C4, broken Chinese glass, and nails) a squad of mercenary soldiers. Would you stand in front of them and give them a speech and expect they wouldn't just put a round in your brain while you were talking?

Is Chinese glass somehow inherently more deadly than normal glass?

I was GM of this session and, let me tell you, Xero leaves a lot of information out. When the man appeared he was already creating a force ten nova spell in a desperate move to save his complex. They had until his next action to stop him. Xero did NOT kill him, actually, another one of our runners did with a shot to the head. The guy was the final encounter of the session and was meant to induce a quick reaction. He didn't really make much of a speech either, he just came up and started Nova. If Wolf would not have killed him, on that action, most of our runners would have had at least a serious injury.

As long as you have insurance (biomonitor detonator).