My dog escaped from his plastic travel crate. I have been crate training him for months in preparation for a plane ride. But he chewed the plastic part that was holding the latch. Since then, I bought a new crate and have been keeping him there at night and for 1-2.5 hour periods while I run errands. He has been perfectly fine, but I am worried that he will try to escape on the airplane. I was wondering if I should just put the cone on him during the flight so he can't chew and hurt himself?