I used to fish at night a few times a week. There is always the chance of an animal or foul play. I just keep to myself and have a positive attitude and things go well.
I believe in what you put out into life in thought will be what you see and experience.
I'm not saying a hungry mountain lion wouldn't eat me, just that i think it 'synchs' you with nature more.
Be aware and don't be worried. You'll experience a great view of things at night.
I've had skunks and a snake approach me being i try to be stealthy while fishing. I see it as a good experience. Humans are the worst threat

, j/k. I mean if you asked me what the probability of an animal attack vs. human. LOL
Good fish'n man. Night can be a great experience at lakes.