Looks as if that's exactly what this camel did:

http://timesofindia.indiatimes.com/city/jaipur/Tied-in-heat-all-day-angry-camel-severs-owners-head/a...

Not a very nice thing to do, but it does rather suggest that we should  be wary of taking our domesticated animals for granted - especially in expecting them to tolerate abuse.

But that's just IMHO, of course.