Ordering

I posted something a while back about knowing what you want to eat when you pull up to a drive thru.  The same goes for waiting in a line.  The menu is up on the wall.  Can you not read while you wait in line?  I mean how hard is it really.  It's different if you are at a new restaurant and can't figure out what you want.  You aren't holding up the line.  Why is it so hard for people to make up their minds.  The worst part is when people don't even feel bad about making people wait.  Man that makes me angry.