Should I apologize to this guy for touching his ass 13 years ago?

This was my sophomore year in highschool. I was part of the wrestling team, and this one guy joined. We were in the same grade. I don't know why, but one practice, my friend, and I kept walking by, and touching his butt. I guess because he I thought he was strange, and I just wanted to see how he'd react. He just stood there like nothing happend, as my friend, and I were laughing. Shorlty after that, he quit the team, and I'm betting he quit because of us. Thus was 13 years ago, and I think about it a lot. I work at Walmart, and I see this guy come in everyday to get a soda. I've thought about trying to apologizing to him. I talked to my dad about this, and he said that he probably doesn't even remember, and I'd just make a fool of myself, and make him uncomfortable, but what if he does remember, and he's hoping I apologize?

Should I apologize to this guy for touching his ass 13 years ago?
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