Why you never say aloha to someone who looks like one of your friends from the back.

So, I've never been what you call, a genius. Geek? Yes. Clumsy? Absolutely. An idiot? No doubt about it. And this is one of the times I looked like an idiot. I'm gonna be brutal honest with myself here. But it happened after swim practice ended and of course like I have distinctly mentioned before (I hope.) I'm not a genius, because my friend, Spencer was already gone when this happened because the next day I did ask but I probably made the humiliation worse. Anyways, I walked up to this kid and he looked like Spencer from the back. And I said, "Aloha, Spencer!" The kid immediately turned around and stared at me as if I had a wonky eye or something. But I think in his little mind he thought I was a stalker and a weirdo. But then I kinda groaned lowly and said, "Oh, not Spencer." And ran to avoid making the situation worse. But I ran into the locker room door after that making it worse. No surprise there! Later when I thought about it the kid was at least, five inches shorter than him! And he was as pale as a sheet. So basically the lesson of my story is, don't say Aloha to young children, who will then permit you as a creepy stalker in their craniums. So make absolutely sure, your friend is your friend before you tell them something weird.