Yeah it's obviously in his head...your arms usually don't get too high. LOL...don't you remember when you first started? Maybe not...but I know that me and my friends would get high for at least 4 hours if not more. It's not placebo....it's just his virgin brain being introduced to very good marijuana...not too hard to imagine. Now I hardly smoke...and when I do I get high for like a half hour...go figure.