Never..... Honestly, I have hunted snake infested swamps for ducks, and spent nights in the desert. Especially if I have a firearm, I dont beleive the boogie man will get me. I know I am the smartest thing out there. Not to say the chance doesnt exist but It doesnt bother me.

One time though I was walking through the woods before daylight during deer season, and I dont know if anybodys ever heard a covey of quail take off suddenly (20 yds away) through the brush, it is TERRIFYING until you realize what it is. Sounds like a hundred things running through the woods at one time.