Wait, so you gave him $22 and somehow had a $5 in there? I don't post often but I need to call BS on this!
BWAHAHAHA!!!! So, why 2 separate payments? I would just hand him the entire payment with tip....does sound a bit suspicious. Perhaps the 16 yo boy was caught off guard by the 2 separate exchanges of $$....if I was paid me this way, I'd feel like you're being a douche trying to be self righteous with your BIG TIP! Seriously, that's what an old man would do to a child to "teach them" the value of $$......No?