 You know, Bob, Mike brought up a really good point about washing sensitive areas like around a pool deck, the concrete around a pool, the diving board, the slide, things that you don't want to get torn up. And if you just go buy a pressure washer from the store and you just fire it up and just start spraying things, you're going to be replacing things. Tell me about that because I'm sure you've gone to fix a lot of homeowners mess ups after a while or heard some nightmare stories.