Whenever we go to the park, there's always a doggie or four that take a likeing to harrasing Wilson. A lot of butt sniffing and a lot of 'mounting' happening shortly there after. Of course, the owners of the other dogs apologize and pull their little fur snaussages away, but they always come back for more. I've just started telling people that his butt must smell like peanut butter. Not that I've smelled it, no. But we do feed him a fair amount (not really). And it seems logical - one would smell like what one eats, yeah?