We regretfully inform passengers your nose is running

Lady on the train,
Why do you sniff so?
I try to forgive you,
Because you are pretty,
But - no!

If you had a hanky,
Or a tissue,
It wouldn't be an issue,
But then I might not have realised,
I'm not as shallow as I thought.

I just don't - like - sniffing.

Clackety-clack,
Railway track.
Sniffety-sniff,
Nasal riff.

Stop it.
Stop it.
Stop it.