There, I completed all three official HL single-player games - Half-Life, Opposing Force and Blue Shift, all ready for HL2 next month.
I also managed to save myself from being kicked out of college by - get this - jumping out of a window. That's true, is that. My Biology lecturer came hunting me down because I hadn't done my coursework and therefore dodged her lesson. The only reason she didn't see me is becase I ducked behind the canteen separating thingy and dived straight out of the open window when the coast was clear.
I could totally give Sam Fisher a run for his money.