Am I evil for licking strangers feet whilst they're sunbathing on the beach?

For some reason it turns me on sweaty feet does. I live next to a beach and when people are sunbathing I walk by, crouch down and just start licking the soles of their feet for as long as possible. Seems weird but it makes me ejaculate at times, not sure why. Some people have get upset and called the police (one man assaulted me) but the local sheriff and coast guard is my brother and uncle respectively and they know I don't mean any harm. So am I wrong or just harming no one? Life is good, live and enjoy it.