Maybe I'm just a worry wart, but mine like to do things that make me think they're sick or injured. Sometimes they drool, forget to put their lower jack back right, make wheezing/hissing noises as they breathe, or rub up against things that are sharp, spiky, or otherwise dangerous.

I've had snakes get tangled in the weirdest things. A burner grate on the oven, a three hold puncher, my recliner, a keychain...