 And then I would try to use that wire brush to brush off and brush those areas where the stains are. And you've got to be careful because you don't want to damage the brick too much. If you scratch it a little bit, that's okay, even if it looks a little lighter than the surrounding areas. Eventually, they'll sort of fade together. But that's probably the first step. And if you want to go deeper than that, you could pick up a wire brush attachment for a drill. And just like a drill bit, it goes into the chuck and it spins around. And you've got to – it's a little bit –