ok, post your rl pranks....
the wife got me at work. she had one of my employees pull up the "pranx.com" website & select the "boot disk error" prank.
He got it loaded up & said hey boss, my computer is doing something weird, then I watched it "reboot" and go through a boot disk crash. It took me a second to realize that this was prolly a prank & and when I tried to kick him in the butt, he said "HR put me up to it!!!" (my wife handles HR stuff so they call her "HR").
man... she gets me every darn year. And she's sneaky, she usually puts someone else up to it.
It's reason #12349597887612934 why I love her!