Stupid Clause

Earlier this year, I went water tubing. As part of this, I was been given one of those liability forms so that, should something happen they can say they warned me. I always read these things. (This has annoyed people in the past, and I just don't get that. Did you really want me to sign and not read it?) So, in the list of risks for participating in water sports, along with wind, sun, water and the possibility of getting wet they include "The presences of insects and marine life form". Really? People have to be told that when you go out into the outside, especially on a river there might be bugs and marine life? Really? I have to sign proving that I understand that I may encounter a mosquito? And, while I generally take the view that the stupid clauses are a result of something happening, I cannot imagine what exchange or threatened action has resulted in the need to clarify that people who go outside might encounter bugs or marine life. In fact, the more I think about it, that must have been some scary bug. Or something.