One says, "Spit out your gum!" The other goes, "Choo Choo Choo"
About a couple thousand years.
You stop milking a cow after 10 years.
Mr Bus.
They go off on tangents.
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.
It was stuck to the chicken.
The teacher says, "Spit out your gum," but a train says, "Chew chew!"
A trained professional
You get a certificate for showing you can do it and hope to god you never have to do it again