None of the sims in my current save have level 10 mischief yet, so I'm not seeing air horns either. Lots of noxious clouds, describing apocalypse, lie about career, that kind of stuff.
Up until I reached the point where I used MCCC Tuner to stop the toilet pranking, I decided to let my sims pee themselves as punishment. I have 3 toilets in the house and as soon as I repaired them, someone would come along and prank it again so I stopped fixing them after a while. :D