Twenty things that scared me aged seven:
Privet
The spelling of 'privet'
My auntie Lillian's Sunday hat
The deep end
Baked beans
The phrase "Mr Davis you require three snookers"
Jim Bowen
The anti piracy warning at the beginning of my betamax video of Oliver Twist
The telephone
Wispa adverts
The 'woah hokey cokey cokey' part of the hokey cokey
Smelling salts
My Jungle Book knickers with Baloo on the front
The concept of sex
Dandelion and burdock cordial
The nine times table
Paternoster lifts
Dinner ladies
The Juliet Bravo theme music
The facial expression on bottles of Mr Matey
I am still afraid of four of these things.

I too harbour a fear of dandelion and burdock. It tastes like evil.