Wifes grandpa will chew your arse if you sit down at the table with a hat on!  not so much anymore as he can't talk after a stroke, but he will still let you know about it.

depends on what kind of eating place I am at if the hat comes off.  Taco John.......not so much. Ruth's Chris.......it comes off.

Sorry I didn't take my hat off in your house Mark.