Seriously no on ever teaches people this. No teacher has ever taught a kid about about the threshold upon which the limits on practical jokes can go. I myself was the victim a bad victim. When i am embarrassed or angry i dont shout, or bang and slam. I do the most ridiculous thing possible. I say my name over and over and over again. Sometimes for up to 10 minutes, and it surprisingly helps. However this time it didnt. This time it was different. Two years ago, i was playing tennis for no reason, due to my mediocre skills, on a summer afternoon. My friend is very good, and ruined me with a shot impossibly close to the net, and so i sprinted to the ball missed by a second and couldnt stop, and attempted to jump the net, and my other friend on the nets acting umpire anticipated this and as i jumped he hurled the net upwards. I lost 4 front teeth, a lot of blood and oddly some of my lip from inside my mouth.
I had to get my revenge and planned without compromise for months , giving up and eventually coming back twice to the project, and spending a lot of money. But last year it was time, and it was perfect everything was perfect. Basically, this 'friend' had a very nice bedroom, which i in turn ruined. While he was downstairs, at his birthday party i planted a hive of bees outside his window(Most of my money, btw). Then at around 2:00AM, i angered the hive with a combination of superb rock throws and a lot of poking and prodding, they flew in and stung him around 50 times. Then i locked his door, and then the best part, set off the 12 alarms situated around his room (he was drunk didnt notice them in the corners) which rung like car alarms.
He had an allergic Reaction to the bees and was very angry the next day.
I think i may have gone a little too far.