Ah revenge, here's something I'm a pro at.
1) Wait a long period of time before you strike. Patience is a virtue.
2) Make a note to the kid that it didn't do any damage and he's lucky because the cops would have been involved. Stay calm, make it seem like not a big deal. Scare him a little with the cop comment so you don't get any reprocussions.
3) Research-the forgotten aspect. Plenty of pranks already done that you can find, from mild to wild. Search the internet.
4) The kill. With a good plan involved, stalk the prey and find out his most vulnerable point. (Offroading his truck, at the movies, asleep) Strike quietly, use a different car to drive you to the mission.
5) Give no sign of retaliation, also known as writing "paybacks a bitch" or anything that would hint to past experiences. Say nothing of it to anyone. Even your closest friends, everyone talks.
6) Buy a nice cigar. Sit outside and soak in the victory. Saying anything to anyone will only cause backlash.
If all else fails I'll fly out and we'll give him an old fashioned "roughin' up around the eyeballs".
Next time this happens, just kill him. That'll take care of the problem.
FYI- The sugar-gastank gag doesn't work to full potential, as shown on Mythbusters.