Great advice so far^

I would talk with him and find out what he's actually afraid of. Does he think they're cold and slimy? Afraid of getting bit? Afraid that they're venomous? Afraid its going to eat his dog? Just doesn't like the way they move? I usually try and find out what actually scares them, before i even try and convince them to touch or hold them. For some people their fears are just completely irrational, so i sorta leave them be. (For example: my grandma. She will never ever ever ever like my snakes. Ever. I've accepted that lol). When my step brother got a snake, my dad's biggest worry was that it would bite him or get out and constrict someone in the house in their sleep. (Funny to us, but for someone who doesn't know, its a semi-rational fear). Once he told me that, all i had to do was use logic to help him get over his fear. "Dad, shes just a baby. if she can't kill a large rat and eat it, how would you expect her to kill a human...?" Then, as far as being bit, i just had to explain how theyre much more flight over fight, hence why they ball up. It's been over a year since my bro got her and my dad now even holds her sometimes. Does he love snakes? Not by any means. But is he irrationally afraid of them anymore? Nope!