Old Nick
Quote 1
"Should have reminded me, I could have brought him something. What's he now, four?" (1.414)
Technically, Old Nick is family. He's Jack's dad. And it's really weird when he acts like a dad, albeit a really terrible, horrible, no-good, bad dad. He doesn't know how old Jack is, or remember his birthday, but he still wants to bring him a present.
Old Nick
Quote 2
"Let's start all the neighbors wondering why I'm cooking up something spicy in my workshop." (2.231)
Old Nick is afraid, too. He's afraid that someone will figure out that he has a woman and child locked up in a shed in his backyard. He's afraid of getting caught. Plus, we can't forget the fact that he kidnapped Ma in the first place. Why did he do it? Is he that afraid of being alone?