I stuck my fingers in the prince's tank today to retrieve a dropped jingle bell and he bit me. I jumped at first, but it only felt like a tiny little gentle bump. XD It was so cute~
Also, about said jingle bells, I wanted to decorate his tank for the holiday season so I taped some little bells on string outside his tank on the front, but he flared at them incessantly so I had to take them off so they didn't stress him out. XD I guess bettas don't take too kindly to brightly-colored orbs hanging outside their house. (Within view, at least) Now the bells are hanging above water level, and he hasn't seemed to notice them.
Have your bettas/fish ever reacted to something this way? XD