Last fall I got came across a water mocossain that was between me and the water. I didn't see it 'til I got about two feet away and it started coming after me. Don't tell me they're not fast, I just happened to be a little faster! lol
Don't know why he came after me instead of heading for the water, but that was the only incident like that I've ever had, and I've lived in some very snakey places. Those cute, scaley little boogers aren't usually a problem. They don't mind me and I don't mind them.