What kind of IT pranks have you played on people??
I used a kinda IP spoof using a proxy (still in kali don't remember name ATM)to gain access to a buddies home router. I changed the DNS to point to one I setup which redirected every common site to a porn site.
Years ago I slipped on my friends GF machine running win98 and changed the shell from explorer to progman and told her 98 sucks I reinstalled win 3.1 I swear I think smoke was coming out her ears as she thought I really did it lol.