Kevin Kulek Sr. was in the arcade business as a route operator back in the day. After his drug addiction took completely over, Kevin Kulek Sr. became a known thief as well and was sought by the police before he went missing. Kevin Kulek Sr. ripped off many people in the business, but this was all before pinside.
Apparently, the apple didn't fall far from that tree with Kevin Kulek Jr., it appears that he is even a bigger thief. It is likely that he doesn't have remorse because this is how he was raised. Now he is just passing down the family lessons to his kids.