1. Stand close to the speaker and yell your order, using colorful expletives in ways which would
embarrass the patrons inside. Done that
2. Drive through backwards. Done that
3. Belch your order.
4. After ordering, cover the speaker and mic with transparent tape. Watch as customers and order-takers are unable to hear each other and, thus, each raises his/her volume.
5. Barter. Offer a Whopper for a Big Mac.
6. Walk through. Done that
7. Speak a foreign language (make one up if you have to). When the manager comes to the mic, speak English and inquire as to why the order taker had such difficulty understanding you. Oddly enough, Done that
8. Repeat everything the order-taker says. Done that
9. Attempt to take the order-takers order
("Hi, may I take your order?") before they get
a chance to take yours.
10. Order confusing items, i.e., "Hi, I'll have a large orange Coke and a small medium fries, please". Done that
11. In a crowded drive-thru line, place a HUGE order, then slip out of line and watch the fun as the person behind you is handed 40 bags of food.
12. When you arrive at the window to pick up your food, hand them several bags of garbage & ask if they'll dispose of it for you. Make sure it smells.
13. Drive through with a carload of naked people. Done that
(if mooning is considered naked)
14. Speak in such a garbled fashion that the order-taker will think there is a problem with the speaker and ask you to order at the window. When you arrive at the window, speak in the same garbled, incomprehensible fashion. Done that (incorporates the different language, which was Russian by the way)
15. Drive through with someone on the hood to accept the food.
16. Bring along a Mr. Microphone.
When the order-taker speaks, aim the mic at their speaker but do so while aiming the Mr. Microphone speaker at the mic to produce excruciating feedback of their own voice.
17. One word: Flatulence!
18. Have a friend hide in the trunk. When you approach the window to pickup your order, have him start yelling and banging his fists on the trunk.
19. If you are a male, have a female friend place the order by speaking VERY seductively and suggestively into the speaker. When she finishes, have her hide and pull up to accept your order. See how many of the order-takers fellow employees have been called over to the window to "check out the babe".
20. Change a flat tire in the drive-thru lane.
I've also thought of doing #11 and also repeating a trick from jackass where you pay for the food and then have a friend run through and steal your food, spike it on the ground in front of the car, and do a touchdown dance on top of it. Hopefully they'll replace the food since "somebody" stole it
BTW: Most of the drive-through stuff we've done is on video. What can I say, we were bored last sumer
And my friend does a mean Russian accent