Could someone explain the dragon's hitbox so I don't make the same mistake again? When the dragon is perched in the middle, and you are trying to do the bed technique in the bedrock tub, sometimes you take damage from the dragon. Why does this happen? And what could we do to prevent it from happening?

I am having a hard time understanding the villagers when you are trying to trade with them. Sometimes when I want the fletcher to restock its sticks, he just wanders off to talk to other villagers. I heard it depends on the time of day when you are doing this. But is there any way to counteract with this issue?