One problem is cats, of course. But, Krypto thought that it was a great game of catch the flying thing - and he is large enough to have sometimes gotten a little too close for my comfort. So, in the crate he went.
He really doesn't use the crate much, just if he wants to go in sometimes, or to take a bone into. But, he was really good when we locked him in - both times. I was really happy about that, as we didn't anyone else to be stressed!
Love All Life, Thank You For Posting! :)