About 27 years ago, when i was a kid, i lived in Turkey--i was a military brat. My parents and i would go to the stables on base to either ride, or help take care of my babysitters horse when she was away. The man who ran the stables was an older Turkish gentleman named Mustafa. None of that is really relevant though.
At the stables there were a couple of fig trees. He told us that the fruit of one of the trees was safe to eat, but the fruit of other tree was not. He said it gave him sores, and foaming at the mouth when he ate them, and he said that they were called "crazy figs."
Occasionally, i'll remember Mustafa, and his crazy figs. However, when i try to find any information on them, i come up with zip. i don't think he had a latex allergy, and was simply eating them before they were ripe, or not letting them sit long enough for the ficain to reduce. The way he said it implied that the fruit was never okay to eat.
My question is "Are there figs that are not safe to eat?"