Hhhhmmm I have 2 boys, and they chew things off each other! One had to wear an eCollar one time because he had razor burner that got infected from the groomers... and the other chewed it off of him... i came home from work to bits of plastic all over the place! And my bigger guys chews his own harnesses off himself. Ive lost about 4 that way! I wonder if they would chew the collar though... it probably does not taste very yummy at all.