"You are very sticky"
So, you're thinking, "Paul is crazy." Maybe true.
Anyhow, as I clenched the deal (starting at 200 shillings), the highway salesman ended our exchange by saying, "You are very sticky!" It was his way of saying, "You are a good bargainer." But if I had a different skin color, I could have been an even better bargainer.
There's always the feeling that I don't want to cut the sales-persons' profit too much - these guys have to make a living! So I attempt to not go too low.