Ok, so this one is going to be a prank on people in a public place of your choosing.
Two old guys and one of their wives are going to be sitting somewhere or something and then the two guys are going to start arguing over whos car is better and its gonna lead to a drag race outside. The old guys will be two guys from Jackass. It will go something like this....
The three old people will be talking and out of no where the old guys will start to argue really loud and it could start off like..
1st guy "You're grand daughter is only using you for her college fund"
2nd guy "Yeah well your Cadillac is a peice of shit"
1st guy"Hey, my green Cadillac with beige interior can beat your peice of shit Buick any day. In 1947 I knocked up my girlfriend in a Cadillac"
2nd "Yeah, and she's a bitch!"
1st "Hey, that girl is the love of my life!"
2nd "Im a damn veteran"
1st "I dont care about how many dogs you've saved"
2nd "I'm Italian and I remember that summer of 1947 like it was 1964 and I didnt get sun burnt once! and I remember beating your Cadillac with my Buick"
1st "Thats it, were ending this right now"
The old guy starts to get up
Wife "Carl, be careful you have a heart condition"
1st "Shut up Martha and gets your ass up"
2nd "Everybody get outside so you can see my Buick kick his Cadillacs ass"
The two old guys will use their walkers to slowly make their way outside. We'll get people to get outside to see whats happening
The two guys are going to line their cars up next to eachother. Martha walks to back of the cars and pulls out a scarf.
1st "Martha, you're supposed to be at the front. I didnt marry her for her brains. I married her for her tits. Look at those puppies"
2nd "Yeah and she didnt marry you for your car"
1st "Shut up you ass"
Marth "Carl, be careful, your heart"
Both the old guys start revving their engines. Carl starts grabbing his chest and starts yelling his heart. Martha throws down her scarf and the 2nd old guy goes into reverse and crashes into another car and Carl has heart attack and hits his head against the stearing wheel so the horn is going. Neither car went forward. Come on, imagine seeing that go down ha.