Aha!! Now I think I know where the expression "getting a bit fruity" comes from...
Mind you, maybe I misjudge the man. Perhaps he really thinks that's how you spell "sacks" and he's telling punters that they can't just whip a few plastic bags without buying any of his merchandise. After all, the Greeks do use the word "sakoula" to describe a plastic shopping bag.
After all, I always used to think that "sex" was what posh people had their coal delivered in: "You may empty the sex into that receptacle over there my man, thenkeeouu!"
(Lady Penelope voice required for that to work!)