If I were a stain, I think I'd be a mustard stain.
To get rid of me, first you'd scrape me with a dull knife. (You may substitute "loofah" for knife here.*)
Then you'd sponge me with cool water.
Then you'd gently rub me with a mild detergent. (Pick one that smells expensive)
Rinse me with cool water.
Then give me a ShoutTM out.
Then a nice wash and air dry.
If you were a stain, what would you be?
*You weren't going for the falafel joke were you? WERE YOU?.