really have a reason for doing this, but you can do it multiple times and, honestly, while the NPCs act startled, they don't seem especially surprised.
I mean, start at the beginning of the game, yeah? In Anomalous Materials, you can sneak around the main desk and hit the emergency panic button. I mean, sure, he beats aliens to death with a crowbar and blows up tanks and stuff, but he's such a joker. So I'm really not too deep into the Half-Life fandom yet (I haven't even beaten HL1- I was getting along nice and well and then I got distracted by Black Mesa because oooohh pretty!) but I can tell- Gordon Freeman is really a child at heart.
