2.
Seriously, don't ask dumb questions.
3.
Hold up the line by taking forever searching for pennies.
4.
Walk away from your mess without alerting the staff.
6.
Order the nuggets from the McDonald's menu...
7.
...or a McDonald's burger.
8.
Change your mind as the cash drawer closes.
9.
Get irrationally angry that you can't pay with bills over $20.
11.
Not speak loud enough.
12.
Ask for inappropriate favors.
13.
Test the "have it your way" method with ridiculous requests.
14.
Ask for things that are clearly not on the menu.
15.
And finally, make the same joke as everyone else.