When my Dad took me fishing for the first time as I was a little girl, it upset me to see the fish twisting and jerking wildly at the end of the fishing pole. I asked my Dad if the hook was hurting the fish’s mouth. He assured me that fish don’t feel the hook. He said that fish don’t have feelings in their mouths. Still, it bothered me because the fish didn’t seem to know that judging from its reaction.