Has /an/ had any experience with these?I bought two for my cats the other day and they don't like them one bit! I've checked to make sure they aren't on too tight, and have even tried putting them on backwards. This has helped a bit, but they still walk funny when they are on.Do you think they just need more time to break them in? I've been leaving them on for a few hours at a time, before I actually put them out, but I don't know if I'm doing right.