 And this fellow was saying, well, the roofer never even really mentioned it. I got a couple, like, shoebox vents up there. And I'm like, well, maybe that's proper ventilation. There's a formula. And he wasn't aware of that, and he wished he would have put on a ridge vent. And then I was telling him, well, then you may not have used the shoe vents. You know, there is formulas for ventilation.