Some dogs will freak out if you stick them into a crate. But it does get better. Another pet talker (Tikeyas_mom) has a dog that hated the crate. With some persistence and hard work, her dog was fine with the crate and I think she mentioned seeing Tikeya sleeping in it on her own.

As for the doors, why can't you lock them 24/7? Shouldn't doors be locked anyways? I know around here, our house would be trashed within a couple hours if we didn't lock our doors all the time.