"They" have said, many, many times, that the white sap of the succulent Euphorbia burns your skin. I have an extensive Euphorbia collection, and I have gotten the sap on my skin many times, and let me tell you, it's not nearly as "hot" as the sap from a fig tree. I cut a few low hanging branches off the fig tree this a.m. so I can drive my mower under it, and I had to lean into the tree to reach a branch growing out of the trunk. In the process, I had my neck up against a branch I had just cut, getting the sap on my neck (and subsequently on the inside of both arms). That was about 45 minutes ago. My skin is still burning, and I've rinsed it off several times with cold water. So, if you have a fig tree. . . BEWARE!!!!!