Conversation at the bike shop

Him: Jeez, I've got a headache.  Fixing that bike gave me a headache!

Me: Were you exposed to any bad fumes?

Him. No, but I set a rag on fire right in front of my face.....

Me: Would that be a highly flammable, chemical-soaked rag?

Him: Maybe.

Me: Ah.
~~~
The End. Another deep conversation at the bike shop.