Prank your bf/gf and tell them that you want to break up. Don't tell them that it's a prank until the end of the day.
Person #1: I'm breaking up with you
Person #2: Why??
Person #1: Because...
Person #1: *thinking* Its November 11 :(
Person #1: You don'tneed to know why
Person #2: *dying inside*
my fucking birthday celebrate it
person 1: hey its November 11th person 2: otay so?
person 1: its my fucking birthday
person 2: oh happy birthday i guess
person 1: thank fucking you :D