Quote from Niles in The Bad Son
Martin: Frasier, what happened? Frasier: What happened? I went six months without replacing my pollen filter in my car, so it was in the shop. Couldn't get a cab, so I took the bus home, which splashed me. And I fell down, missed my stop, and had to walk home ten blocks in this downpour. Niles: You went six months without changing your pollen filter?