what kind of 'pranks' are you thinking of??
back in the day i was usually a ring leader... moving vehicles (the old bounce technique... or even carry them if i could find enough buddies with nothing to do for an evening) - we toilet papered friends houses, surran-wrapped vehicles, while at friends houses hide things like remotes, car keys, etc.
that kind of stuff i did years ago, now i try not to cause as much 'suffering'.
one of my favourites in the last few years was when one of my buddies (
an INSANE canucks fan) wanted to take his wife out on a date. he asked my wife and i if we wouldn't mind watching their kids for the evening. we were fine with that. everything went off just fine - the kids were all tucked in and asleep well before they my buddy and his wife returned home. the phone call i got the next morning was priceless...
he didn't really appreciate his kids new matching shirts - ha! ha!