Its lunch time so suffer this.
We have a a couple sunfish breeding setup running almost year round. One for commerically relavent species like Bluegill and and Redear while another supports the pretties like Longear, Dollars and Redspotted.
Bluegill setup several years back has several males on nest ranging 1.5 to 2 lbs. Nest were setup on end of tank in very shallow water to ease inspection for eggs and short people to get nest out without falling in. For some reason during one production cycle the males got very belligerent. They would bite your hands repeatedly and even jump out of the water. The we had a rather crabby sheep and goat person (Dr. Schwarz) that was better than fish and the people that worked with them. She was downright snoottie. One day she went in with a couple of her clients to look at the lowly sunfish where she proceeded to lecture to her guest about the fish without knowing what the fish where doing. I warned her across the tank that she was in a danger zone and not welcomed by all parties. As typical, she ignored warning and starting poking around the nest area just above the water surface when a large male launched itself out of the water and just barely missed hitting her nose. Schwarz jumped back and giggled like a little girl. She was pushing 80 years of age and had fiery red hair. She was also pretty darn fast.
Other incident that was as least in part repeated had a male Redspotted Sunfish in a 250-gal cylindrical tank with a nest on the back side but still within view. He had one brood swimming about nearly one month old and another as pro-larvae in the nest. We would bring a couple groups of 10 to 20 people each to show different types of aquaculture and did a little fish biology outreach as well. Groups with kids tended to have poor hand control and would reach into water despite being told otherwise. In this particular incident kid placed her hand in water and male sunfish swim the nearly four feet and bit her pretty good for a sunfish. She jumped back screaming and almost knocked down kids behind her. All kids got really interested then and that kid attacked was most so.