It was Max Wiffel. He was one of the Tennets in the apartment building. Though Damon never seen him that much.
He open the door as Max enters. Damon enters another room and gets dress. "Damon are you here? I would like to talk to you."
Damon then goes up to Max. "What's up Max?" Max looks at Damon. "Oh there you are. Can we talk?" Said Max.
"What for?" Damon knew that Max only came to ask Damon for something. It wasn't anything good.
"I want to ask you a favor." Said Max. "Here we go. Every time, you come over, it's always a favor." Said Damon.
"I'm doing some experiments. But I can't do it alone. I need some help and you were close by. Please."
Damon knew Max was a doctor. But he didn't know what kind of things he does. Damon was a nice guy. So he decided to help him out.
"Alright I'll help." Max smiles. "Oh thank you Damon. I'll be in my apartment. You know where I live."
Max then left the room.