Advice needed!

[Newfoundlander]

One option without actually having to say anything and possibly embarrass the poor lad, is to wear your kilt and make sure he sees you.

Chances are he'll see you and think "is he backwards, or am I?" With that he'll likely hit 'kilt' in google and get a thousand right-way-around pictures, and he can quietly excuse himself to the mens and turn it around.

This will also avoid any awkwardness of telling him and finding out that he knows and is wearing it backwards on purpose. You never know... he may be...

I'd to that I think. Or totally change tack, be totally blunt/sarcastic, and ask "why isn't your shirt backwards too?"

my 2p