To be honest, it seemed he was just taking the p*ss so I continued on without giving further thought to what he asked of me, until now

Reminds me of my days as an obnoxious student - finding mild entertainment value in approaching those shady characters that lurked outside Camden Town tube station on any given evening, asking them if they had any welchies, No? How about coom-bah-yahs? Rinse and repeat until boredom sets in/collapsing into a heap