What would you pay for half a kilo of tomatoes?

On Sunday I went to the bazaar.   When I asked the Tomato Man "how much for a half kilo of tomatoes?" he replied in broken English, "Four of your children."  Confused, I told him in broken Arabic that I had no children.  "Four children by you!" he shouted.  I couldn't decide whether he wanted me to have four children with him or what, so I politely (if urgently) declined his invitation for a cup of coffee, handed him a couple of pounds and went in search of vegetables that I could buy with money instead of children.