My favourite is the episode he finds the locked emergency exit:
"Ah an exit sign, it's about bloody time!"
*door is locked*
"Okay remain calm" *tries to smash the glass with the crowbar* "Jesus"
"Fine we'll take this to the next level" *Fires at the glass*
"What the fuck did we install bulletproof glass in our emergency exits? That stuff ain't cheap how retarded are we?"
"What did the think was gonna happen the turret guns just spread out a pair of legs and leave?"
These lines always crack me up.