I've not found BG to be much of a problem with biting. That is swimming off a dock. Yes, if you are still in the water a while they will take a nip or two. Wear a shirt and avoid skinny dipping. It is mostly the smaller fish that seem to do it.
One potential problem with BG that I have not had but could be a problem is if you make a shallow, sandy beach type area for small children. I can see how adult BG would determine that it would also be a perfect substrate to create nests. A 10" male BG on a nest defending it might give a small child a nip that would discourage them from entering the water again. So I can see that as a potential problem.
I actually kind of think it is cool having the fish that close in contact with me. But the more squeamish might not appreciate it.
