Will I be sued?

I asked a tree trimmer to give an estimate on trimming a tree on our property. As we were walking away from the trees, I turned to see him lying on the ground, as if he'd fallen. He said "that hurt". I did not see him fall, because my back was turned as we were walking. This organization claims to have insurance, but they failed to provide any when requested. I have no insurance. Will a judge make a determination that he deserves compensation? We walked further around the property after this- he did not appear or act injured. Thank You Norman Spurgeon