Boy: Look at that lump in the middle of the snake, Mom, that's the mouse it ate I bet, we learned about that at school!"
Mom (thoughtfully): How does it get out?
Dad (looking at Mom like she's brain damaged): What do you mean how does it get out? It ate it, it doesn't come back out.
Mom: Oh, well, what about the... um... remnants...
Dad: It's got an out-hole, you know?