 That's smart. Oh, that's a good idea. Right. Like the way the slurry bombers put the red stuff in the slurry so they can tell where they went, he does the same thing with a little food coloring in that backpack sprayer to make sure. That's brilliant. So he can make sure of where he's been in the yard. The food coloring doesn't hurt the grass. It'll kind of fade away after, you know, a day or two or certainly after it's been mowed. And by golly, weed-free zone will...