Stuff that dude, put on the angry face and say "If these pills are worth buying and your not ripping me off, you will let me test them before I buy" if everyone was like that shit pills wouldn't be getting around. Or if he cracks the shits what I usually do is say "Ok I will but one off you for your normal 1 off price, test it, if it's good I will buy the others" don't get caught with copy cat pills, they have probably started making these Pink Ladys because of their good name.