[Bakugo listens to that, and he straightens up a little bit and turns to face Deku fully. It's not a terrible idea, honestly. He didn't think about the hinges but melting them...]

Melting them would have welded the door shut, idiot. We wouldn't have been able to get out normally in case of emergency and we'd probably be deducted for that.

[However..]

...but if you broke them with your Quirk, it might have caused the door to fall over instead. If you aimed with your heel instead of your toe, making a clean strike.

[He demonstrates, kicking down with his heel against the ground. With his stature he just looks like a thug about to curb stomp someone's head in or something.]

Otherwise the entire door would have fallen apart, and I would've killed you for screwing up your own stupid plan.