I'm pretty sure that's what I ended up doing, lol. I didn't even finish the worldcorp ending though, after he sent me to phasmatis I started feeling bad and worked for PDX, lol

Not TNM, but I can share one for DX.

In Oswald's there was a locked vault with an explosive vate very near. I pushed the vate to the vault (to save a LAM or lockpicks). Or so I thought. The damn door inbetween closed in on me, detonated the vate, nearly killing me. Ugh.
Okay then, LAM it is. I throw it, make a run... when that same damn door closes up on me trying to run through it. Result; Death by LAM.

And my savegame was from starting at the rooftoops again, needing to re-do the entire assault on the Wherehouse. Great.
Meh, next time I'll let Gunther do the cleanining...

Thinking it would be fine to shoot the PHAT Rifle in the armory in PDX to test it after getting it in PDX play through. All of a sudden I get the "'PDX says no to firing guns inside the building policy, even when in the armory where there is a store of weapons you can use and nobody in there but yourself" *bang *bang* *bang* your dead. I stupidly saved at this point and couldn't go into PDX on day 1 without being shot at - no cheating so it was awkward until Day 2.

Another would be in Central district where you start, returning to find out who blew up Sol's bar and seeing two firewalls run away from the castle area and then they see me, and start firing and then 5 firewalls are chasing me and shoot me down. I didn't even do anything to warrant such brutal punishment.

Cheating a bunch of TNT crates below the bottom of the ATC building and flying to the top of the building (one you can crash into) and then doing a sort of Redsun 2020 Banzai Jump of it onto the crates and see if I hit them.

Well I think this is a stupid death because I f'd up my save file in the process. I saved and didn't realise at the same moment I was in the area with the robots in the old PDX complex where ShadowCode says "you have to think outside the box" and at the moment I saved, I didn't realise a large crate was coming down on me (the area past the military bot at the exit to a corridor that leaves the area with the large crates, and now if I reload, it just happens again and I don't have time to get past it when I reload.

Don't suppose there is anything I can do other than restart the game from the beginning?

Edit: Managed to get a way around it. I paused as soon as I entered the save, then used the console to change slowmo to -99 and was able to move out of the way before being crushed and then reset the slomo. Have to be more careful with saving in future.

Just save in different slots every now and then - at least once per level, save in a new slot, like when you enter a new map or something.

I was at Osgoods heading towards the building with the power generator. I decided to go via the building accessed by that ramp and window you have to break first. I had activated the speed aug to cushion the fall when landing from the fire escape and forgot to deactivate it. When I ran across the ramp I jumped too high to get through the window and landed with a fair amount of damage right next to the guy in that little alley. I managed to kill him before he got me but in the meantime a Dobermann bit me once and killed me before I could use a medkit.

That is not TNM! You are banned!

Vortex grenade, lava caverns (let me jump to my death again), and red biocels. Stupid but not amusing. Well I did laugh when I was blended to death by the vortex grenade.

In ABI I threw a vortex grenade in a hallway to finish some of the guards. When they died I had forgotten the fact that you can kill yourself with those things so I go and say "Oh hey let's see what they dropped!" run straight into the hallway and got sucked right in.

Recently was in Despot's apartment pulled the switch in that one room where those two doors close on either side (as soon as you pull the switch) and stood in the doorway waiting for some kind of attack and the door said "Hi!" and crushed me.

My most stupid death?
Vortex nade + Ryan = Trestkon screaming even when splaterred on the floor

When i set the Gamespy station to explode as i left the area, the explosions pushed me away while i tried to climb the ladders to reach the elevator. Then i was running out of oxygen so i tried to find some place to recover it. I opened a door and i encountered a big ass military bot who ended up killing me.