DRIVE THRU KNUCKLEHEADS

Now I don't know what it is but whenever I go through a Drive Thru for food I always end up behind a Drive Thru Knucklehead. Huh? OK, I'm talking about people who appear to have never seen the menu in front of their face. They sit there and stare,,,,and stare......and then proceed to ask a series of dumb questions. Can I get that without this? Can you add this? are there any coupons?.....and on and on it goes.....All the while I'm sitting in my car fuming and losing my patience as I know exactly what I want and could have already ordered and paid and been on my way. But no........there I sit waiting and waiting for someone who can't make a simple decision. Jeez....what's a guy to do.