person A: This is terrible but there was this bad smell getting worse and worse in my kitchen. Couldn't find where it was coming from.
person B: Uh oh!  What did it end up coming from?
person A: Went under the sink for something and when I moved it there was a puddle there. The sink had been leaking and the water was funky.
person B: Yuck!  Clean that up quick so it doesn't grow mold!