I am just curious about one thing. You said in your original post that he broke the plastic tray
UNDER the bars on the bottom. Is the tray really under the wires? I have never seen a crate with a tray underneath. It is meant to fit in the bottom of the crate to give them something besides the bars to lie on.
If the dog has to spend a long time in the crate with bars digging into him I don't imagine that would be too comfortable. Just my
Possibly it would help us understand what he is doing if you could take a picture of the crate and post it?