Be a honest person

I went to book shop to purchase my account answer and it cost RM 7. I pay the boss Rm 10 and he suppose return 3 bucks balance to me. But he give me RM 52, i give back him immediately. He didn't thanks to me also, @@.. Alright, at least i felt happy after i refund him $$. Maybe someone will scold me like a foolish, but that is me, kelvin Teo. ^^