Explain nuclear fission in the style of Jerry Seinfeld

Nuclear fission, smission, what's the big deal? You take an atom, hit the nucleus in the middle with some particle, and it splits up into smaller pieces. This releases a teeny bit of energy, because it's an atom, for goodness' sake, it's pretty tiny! And maybe if you're lucky, those little pieces hit other atoms and release even more energy and get you a nice toasty chain reaction. No big deal at all, just gives us cheap electric energy, or giant bombs to blow things up with. Seems kind of obvious that it would work that way for anyone who's done bowling though, or who's had to stack a bunch of ping pong balls. Not like anyone got a Nobel prize for this.