Lycaeon

Go to the wiki and familiarize yourself with each of the antagonists and how they usually behave based on their resources and objectives. While you shouldn't go screaming about a vampire or changeling over radio without a very good non-meta reason, just being situationally aware yourself of someone following you for no reason or running around in maintenance can and will save your life.

Alternatively a welding tool and a wrench will get you out of virtually anywhere that doesn't use reinforced walls. Do be prepared for eye damage though unless you have a welding helmet.

I'm pretty sure ponies said the bone damage was a bug - slime people aren't supposed to have bones.

A useful tip: Keep two bodies, one as your guinea pig in the radiator, and the other as a template to inject whatever useful blocks you find.