Not yet, but managed already to seize a hot bead (do not ask me what for, I don't have a reasonable explanation, probably wanted to marver it this way
). Thanks to SG practice, dealing with small pieces of a lampshade makes the fingers less sensitive to cuts and burns. And guessed to grab a piece of "someting deeply frozen" from the freezer and to hold them for several minutes. So, can not consider it as a burn. But please, never ever try to shape a bead this way (you won't but just in case)
And I would add an emergency recipe if you can not find your burn gel or whatever - raw potato. Grab one, take a sharp knife and make a slice not less than 1/8" (does not really matter, 1/4 will do, do not spend your time for measuring - just take a thick slice). Put it on the burn and fix somehow (do not press too strong, just fix). It is completely safe if you can put it on the burn. This is a "grandmom" emergency method, does not substitute medical assistance in heavier cases.