SH: Oh no!
SH: The cats threw up down here!
Me: Oh. [Staying upstairs.]
SH: Would you bring me a paper towel?
Me: For what?
SH: To clean it!
Me: Why don't you just use a rag?
SH: Because there is cat saliva! And cat hair! Do you want the rag to get dirty?
Me: That's what rags are for.
[I have an entire bucket full of rags. That's what happens to old socks and t-shirts in this house - they get cut up for rags. Rags that are intended for cleaning gross stuff.]
SH: Rags are for water and messes like that!
Me: I wash them in bleach and hot water. I think they can handle cat vomit.
[I also have washed cloth diapers before, which SH has not done. If it's OK to wash and re-use a diaper, it's OK to wash and re-use a rag.]