1. Volcanos
    Seeing as how I live in Southern California
  2. Ferris Wheels
    They're circular metal death traps. Don't even get me started about the one at California Adventure
  3. Irregular patterns of holes
    Seriously, Google "trypophobia." It's disgusting.
  4. The drive up a mountain
    You might fall off the side. Or worse...it might actually be a volcano.
  5. People with Alopecia.
    I'm just sayin.......