I have to disagree. Small dogs have a far more damaging bite than a ball python. I would never compare the two. I would tell them a bp bite is comparable to rubbing against Velcro.
As for not being able to take your snake to visit...even in a locking tub. I don't get it. Why take them out of their comfy home to set in conditions that are less than ideal just to be around people that don't want it there? I know your proud to own your snake but I have never been one to want to cart mine around to let people with a fear of them see it.
If people have a fear of them let them come to you. Dont go to them. How bad would it be if a snake stressed from travel tagged somebody like that? They would never change their pov then.