While I’d love to claim that all my ideas are completely original but the door lock idea is from Spiderman #69. I’ve often thought about superstrength (definitely on my top 3 power list) and the oddest thing about that issue is that Kingpin isn’t technically stronger than a human can be, so that it wouldn’t be that hard to winch that door open. Spiderman could’ve opened it with one hand; he’s many times stronger that the strongest human. ┬áNot that it’s been on my mind much.