What diseases were there in the trench in World War 1? Trenche foot was very common in the trench warfare. caused from wet feet and not being able to change their socks and boots. Edit
Repels Sharks No.........human urine actually repells sharks and other fish.
Growing up watching Jaws and fictional shark based stories, I recalled some scenes from the movie that sharks target wounded people who were swimming or in the water. I'm just really curious if they(sharks) actually are attracted to the smell of blood.