Water. I almost always refuse to swim where I can't feel the bottom of a pool. I almost drowned when I was 8. The worst part was that while I at the bottom of the deep end freaking out, my parents, aunts, and uncles were just about ten feet away from the pool on the patio. After I managed to push off the bottom and grab the pool edge, I just stopped swimming. And my parents were none the wiser for the rest of the day...
And heights. But that's another story for another time...
Happy Holidays Everypony!
Redskins and Utah State University Alumni Collector
I am BO's resident brony