"Hey, you can put new parts in an old car as long as most of it is still good, right? Same idea. Like, if you need new windows, there are windows that help insulate better so you spend less energy. That sort of stuff. Um..."

Liam pulls out a wallet from his back pocket, and starts looking through it.

"Okay so apparently I'm pretty lame about keeping a business card, but if you ever want to think about it, you can talk to me and I can point you to the people who do consults and stuff, yeah?"

He looks down at his wallet and then to the register.

"I'd better get going, though. I'm getting pretty tired, anyway."