wow... this makes me nervous because Kash wears a collar all day while i'm gone, but nothing bad has ever happened.
i don't think he even notices it's on him because he's never tried to bite it off or anything... but after reading this thread, it makes me wonder if i should only put it on him while i'm at home...
the only reason he wears it is because it has a bell on it, and i need to be able to hear him (wherever he may be). when i first got him, i accidentally kicked him a couple of times while walking because i didn't know he was so close to my feet. so, i put a collar with a bell on him, and now i can hear if he's near me, and avoid stepping on him! lol. but i guess it's not a necessity if i'm not home.
i know that just because nothing bad has happened so far, doesn't mean it won't in the future! so the collar is staying off while he's home alone.

thanks for this thread and opening my eyes to my ignorance!