I went for a swim in my pond yesterday late afternoon to cool off from a day's work outside. The small BG were having a nibbling spree, first time this year they've bit on me. While it doesn't hurt, they do give you a thump and it's annoying. I just kept up some light leg movement while I wallowed around in the deep water and that kept them away. However, despite my movements, a huge monster snapper surfaced about 5 ft. away from me and I've never had that happen. That made me a bit uncomfortable to say the least. I'd hate to have one of those nibble on me.