Because they're both cauldron
The second one's a race for the cure. Shamelessely stolen from.
Coconuts have hair
Urine.
You tell your Wife, "I saw a lady, looked exactly like you" Wife asks, "WAS SHE BEAUTIFUL?" You cant say 'NO' You cant say 'YES' That is Checkmate!
The story grows on you.
Quidditching
Because some of their best friends are black... for Halloween!
Brovines.