I love good old revenge, do you guys? It's not petty if they genuinely deserve it. I wouldn't count this as mean, but I had a cruel ex boyfriend who was a video game addict that wanted me to die. So, I had tons of people spam him number, make fun of his gross caterpillar mustache and him in general and me and a bunch of people sent him puke and throw up porn.
We also made attempts to pretend to be him so a porn star with botched surgery could come to his place. I also took a shit and showed him what was in the toilet. Ah, good times.