Not many things creep me out... but snakes are on the tip top of my list... especially when they get in my house!!! We had about 5 Snakes in the house this summer...
When I was a child, my dad had boa constrictors and they would get into the pool every now and than... We would jump in the middle of night to have them come curl up on your arms/legs not attacking but looking for safety. that is 99% of the reason why I dont like snakes to this day.