 One of the things we get when concrete gets a little bit older, we start having efflorescence, which is that white salt. There is an efflorescent cleaner that'll take care of that project. Jim, you there? Yes, I am. All right. Fire away. Well, I didn't hear all your conversation right there, but I've got a retaining wall that's been graffitied a couple of times, and last time I did it, it was black paint and