(conversations overheard on playdate between the PT, aged 5, and the PT's cohort, aged 5 and 1/2)
PT: what's your hobby?
CT: what's a hobby?
PT: it's something you like very very much.
CT: oh....well then, my hobby is everything!
PT: my hobby is pizza.
PT: i have to eat all my food so that when i grow up i can be an airplane pilot!
CT: i have to eat my protein so i can be a librarian.
PT: but when i'm an airplane pilot i won't have children.
CT: why not?
PT: i'm last born. there can't be any more babies.
CT: well then the person you marry will have to have the babies.
PT: hmm...i guess, but then who will be firstborn?