If I attracted the disdain of someone so ill-mannered as comment on *anything* about stranger's appearance, I wouldn't be able to help feeling that I was doing something right.

As for finding things "vulgar", I hope he hadn't spent his life doing anything uncouth as going to work, or, heaven forbid, been in trade. But I suspect if he's wearing something as commonplace and overtly practical as a Daytona - well, best to draw a veil....