Prank blue screen of death (SO REALISTIC!!!)
You were playing your favorite video game (which your mom and dad told you specifically not to), when all of a sudden, oh noooes! A BSoD (blue screen of death) appears, you panic, not knowing big boi words. It restarts, then says get fooled! You've been gnomed!
Funny BSOD prank. I tried it out with my dad, he totally got fooled XD. Kinda hard to prank people since it's on a webpage (for the people who know nothing about computers, it may be easy), but nevertheless fun. Looks sooo authentic, I even put real errors in there (yes, DRIVER_IRQL_NOT_GREATER_THAN_OR_EQUAL_TO is an error)! Hope you like it (hint: works best in full screen) :)
But what did you mean about the timeouts? They're mildly accurate, for short durations. As long as you don't set a timeout for over an hour, it should be fine.