I was confused at first; I thought you only had your signature, not a phone number on the disc, so even if the guy wanted, he didn't have an immediate way of contacting you. Not sure how I would have reacted because I ink almost all of my discs with my phone number... Actually I use a Google voice number that I forward to my actual phone so I don't just (quite literally) throw my real number out there. But I'd have come across a disc that I inked with my number, I'd be upset that upon recognition and proof, the guy didn't say, "hey my bad, my friend gave it to me and I just figured he tried calling the number... Here" and offer it back. Like you, I'd probably give him a disc or offer him a reward if that happened. I think the way you initially handed it was a little childish, but obviously so did you since you apologized for jumping on him. His total behavior was way more out of line though. I call the number on every disc I find. Usually, people are just kind of, "oh yeah, I totally shanked that drive, you can have that old leopard, I don't need it", but I'm always ready to reunite a lost favorite.