Remove door crush damage for polymorphed critters

[Roomba]

Personally I subscribe to the newfangled millennial idea that random, unavoidable instadeath thrown at you by the game itself is a design feature that should be avoided.

I'd be happy to see the whole doorcrushing thing done away with really. I don't think there's anyone who's a genuine fan of it in and of itself, only of how mad it makes other people, and design decisions driven by contempt does not a healthy playerbase make