Notes:

This is a parody of that scene from Indiana Jones and the Kingdom of the Crystal Skull where Indy survives a f-----' nuclear blast by emptying out a fake lead fridge in a nuke town testing site and hiding inside it. He immediately gets out after the initial blast (and was sent flying probably miles with heavy impacts against the ground, btw) and is totally fine.

Apparently that fedora has a radiation immunity buff as well and it wasn't just a really silly and dumb scene at all. Therefore, it's safe to say that the insides of Grimm are immune to giant airship base crash impacts/Ruby kicks and Roman's impeccable sass bowler makes him immune to explosions; also Grimm have no guts or anything so he is totally unscathed since he was swallowed whole.

PS) I was super tempted to Grimm-ify the superfluous gopher Indy sees immediately after in that scene, but eh.

PPS) I swear I'm still making dumb edits and uploads and stuff, you guys.