Me, talking about my high school graduation which was invaded by 17-year-cycle-cicadas: Normally, they're just a bunch of larvae wriggling around in the ground, but then every seventeen years, they all come out at once, and then they scream, and then they die. Then there are more larvae that just kind of wriggle around for another seventeen years.
Not GrumpyCat: Correction: They scream, have sex, then die.
Protean Prankster: And it just had to be your year, out of those seventeen years. You're just so unlucky.
Oatmeal Sam, who hadn't previously been in the room, after hearing just the part about screaming and dying after seventeen years: Are you guys talking about cicadas?