What’s your strategy or how do you counterattack when you encounter someone in a button up shirt without a collar?

Do you assume Scientology?

I could care less what someone else is wearing. Maybe you should try minding your own business

I report them to the proper authorities. Let them handle it.

I've never seen a shirt like that. Explain OP.

Index finger in the eye socket. That was what my husband always told me.

I once quizzed a guy that seemed to wearing a clothing item for the purpose of being identified as having anything at all remarkable about himself.

I realized my mistake upon being barraged with a prepared response that seemed more intended to puff himself up than anything.

my counterattack was to be completely genuine in my lack of being impressed.

You don't see Earth Shoes around much anymore.