not to say we don't like you to do bork in your homes, we -- to do work in your homes, but maintenance will help home repair. i have some slides here. let's take a quick peak here -- peek here. we'll look at the outside buildings first and inside buildings next. outside buildings are typical maintenance issues. a whole plethora of maintenance issues. the siding, the windows, the doors, the stairs, the sidewalk, the landscape. so let's just look at a couple different kinds of buildings and the typical problems they might have. so, for example, here's a building with final siding. what kind of maintenance do we need with the vinyl siding? we have to wash the thing, that's for darn sure. what do you think? >> it's got to be washed, caulked, checked to make sure water is not getting behind the siding. >> caulking is not a replacement for good flashing. caulk something sort of a -- an interim waterproofing material that has to be maintained. if somebody says, we have a leak, let's caulk it, what that means is we've got a temporary solution that's going to leak some more unless you maintain