honestly? you want my opinion?? I had the same thing happen to me.. EXACT same thing. I thought the same thing (thought it was the popo).. but then I asked him his age. Dude said he was only 16. That explains all of it.. so I no longer spoke to the kid. I'm not about to teach a kid how to grow cannabis.. kids should be out playing with their friends and playing sports and shit. Not worrying about growing cannabis. Just MO though.
So, common sense.. just be careful. There's a quite a few kids roaming this site, and theyre not hard to pick out. Just a fair warning..
peace.