I'm not going to name names, but there was a well-known hot keeper who got tagged by his atrox because it was HIS opinion that vipers would always focus on a heat source when striking and disregard all other movement as long as the heat source was moving. He would distract the snake with his bare left hand and then tail it with a gloved right hand. He would tell anyone who would listen that this was an iron clad truth with viperids.
For many years, that tactic worked until he took a massive hit on his gloved right hand while trying to tail said atrox.
Sounds like Murphy's law. From what I've been told, getting comfortable around hots is the last mistake anyone wants to make. There isn't any room for "opinions."