I bought Lizzie a crate mat yesterday and put it in her crate right before we go to bed. M'kay She FLIPPED OUT. Started trying to pick it up and take it out, bitting it, then humping the thing! It's made of high quality synthetic fleece - but WTH would she do that? LOL I conditioned her to it by putting her in there with a kong treat, so she's fine with it now. But it doesn't make any sense as to why she's do something like that.