A: One goes choo-choo the other goes chew-chew.
Lefty!
You wave!
It was stuck to the chickens foot.
One says, "Spit out your gum!" The other goes, "Choo Choo Choo"
They have Conductors.
Because they're bad conductors.
A schoolteacher says "Spit out that toffee" and a train says "Choo choo."
A school teacher tells you to spit out your gum, a train says choo choo.
