Not FFing, but I was going hunting with my dad in Morro Bay, CA. We were launching the boat, and there was a loon swimming around, giving its mournful call.
My dad carried the boat backwards into the water, and the loon took offense. It came over and started attacking my dad's legs. they have BIG bills. Dad kinda shooed the batty bird away, but it keep coming back.
Finally, dad reared back, and in knee deep water, kicks the loon about 5 feet. It does a complete back flip and then uprights itself. It continued to swim around, calling and calling, but it never came closer.
After the day's hunt, dad had 3 bruises on his leg around his knees.
"Trust, but verify" - Russian Proverb, as used by Ronald Reagan