"It's a good policy, nobody wants to be stuck snackless," Foggy mentioned, as if it was silly of Peter to not consider that. Who didn't love having snacks at their disposal, especially if - like in Foggy's case - they were looking forward to grabbing something for dinner and now had to contend with starving.
Foggy would have laughed at Peter if he wasn't half-frantic. "For science, huh? Well, right now I'm glad you're into science, Peter." All things considered, having a roommate who hoarded tools was a better deal than Foggy's potential career ending friendship with a masked vigilante. And hey, if Peter wanted to keep tools around and more wacky stuff like this happened, then good for him being unknowingly prepared.
He had fixed many a rusty door hinge in his time living in Hell's Kitchen, and assumed popping the pins out would be easy peasy lemon squeezy. And yet, here he was breaking a sweat attempting to get the screwdriver in a good enough position to start trying to lever out the pins. When he finally got it into position, he took off his shoe in order to help loosen the pins. "If you hear any wheezing or grunting, it's just because I'm out of shape, I swear."