Subway Train Puns

Oops, wrong sub!

Every time me and a friend of mine are in an elevator and a new person walks in I ask my friend “ How’s the elevator business going?” and he replies a with ”It has its ups and downs”

Are there any other Dad jokes you can use with another person when strangers are around?

Or any jokes along the lines of “How’s the blank business going?

My friend: When I was on the subway this morning some guy tripped when he was getting on.

Me: That must have been very enter-training

I walked into the kitchen and I asked "what is it that smells like subway?"

Dad: "The 7 train, the F train, the B train..etc. "