True Story:     I am seven feet tall and am challenged everywhere I go to have to duck while going through doorways, whether I need to or not.  Often, when I do duck, it draws attention from onlookers.  This is an instance of walking into a restaurant outside Atlanta.

I walked through the doorway of a Shoney's Restaurant on Wesley Chapel Road east of Atlanta over a decade ago and was instantly greeted by a server by the register.  This server was probably 4 feet 9 inches tall (and probably the same dimensions around also).  When she saw me duck, she asked very boldly, "sir, you must be 6'3" or 6'4"!   Other servers chimed in and said they thought I was at least 6'8" tall.   I disagreed with their guesses and told the first server, "well, Ma'am, I'm 6-12!"  The shorter server had that look on her mind as if she was trying to figure what 6'12" amounted to.  Then, she figured it out and said, "Well, gosh, another two inches and that'd be seven feet!"

Make sure you check your bill twice in those places.