About five years ago, Dillon Katz, entered a house in West Palm Beach, Fla.
"I walked in and the guy was sitting at this desk — no shirt on, sweating," Katz says.
The man asked Katz for a smoke.
"So I gave him a couple cigarettes," Katz says. "He went around the house and grabbed a mattress from underneath the house — covered in dirt and leaves and bugs. He dragged it upstairs and threw it on the floor and told me, 'Welcome home.' "