Here's a thought. If you've actually bulked up that much, and are EXTREMELY confident you are much bigger and stronger than him now, and you do happen to meet up with him, do this:
Introduce yourself and ask if he remembers you. Hold your hand out to shake his. Squeezzzzze and shake vigorously as you ask him how he's been, with a huge smile on your face the entire time. Act as if nothing ever happened. Just smile squeeze, shake and be really friendly.
Then...
Walk away and never look back.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...