That's a nasty thing to happen Mate. I wonder if you are getting over-confident, and no longer seeing your unit the way others see it? You might think of putting up some pics and inviting constructive criticism. Or if you would rather not do that, pick a couple of experienced wears who you trust off the forum, and ask them to do it privately.

Anyway, chin up. At least it was a random bloke in a pizza shop, and not a date or one of your close circle. But time to act now to prevent any reoccurrence.