Mine is snakes. I am the only girl with 5 brothers so you know snakes were in the pic. My son was never even allowed to have rubber ones. Also I was scared as a child to go over the Great Mighty Mac bridge that goes from Mackinaw City,Mi over to Soo St Marie[upper Peninsula] Mi. It is 4 miles long and as a child I would hide my head on the floorboard of our car. I still hate to go over it. We lived 15 miles from it.Till I got married 37 yrs. ago. So Heights and deep water are other ones.