Dogs seem to be much more tolerant of clothing than cats.

I remember putting a T-shirt (made especially for cats imprinted with "Have A Mice Day" that I ordered through the mail) on Meeshe a few years ago. It was a pullover with short sleeves and he offered no resistance, but as soon as he began to walk he promptly toppled over on his side, like the "help I've fallen and I can't get up" scenario! Of course no harm done except to his pride, and I promptly removed it . . . once I regained my composure from laughing hysterically!!!

Since cats are used to being so agile they probably feel restricted in clothing, yet I have heard that it can have a calming effect. I certainly didn't expect my "son" to have such a fall-down-drunk reaction!