Guy Selling Apple Seeds At Street...

Police officer came and asked him what is he doing..
man: I am selling apple seeds which make you smarter if you eat them.
PO: Really? do they really work?
man: well buy some and try...
PO: okay, give me 5 seeds
man: That is 10$ sir
PO gave man the money and ate the seeds and 2 min after that he said:
PO: wait a minute, I could have bought like 10 apples for that money and get like 20-30 seeds.....
man: see they already work :)
PO: Wow, give me 5 more!

Sry for bad english