Was there something you were afraid of as a child that just seems silly to you now?
Of course. I was afraid of drains. This included shower drains, sink drains, even toilets and sometimes pool filters. I was afraid my toys would get sucked down a drain, so I'd be very careful when I brushed my teeth, sometimes "forgot" to flush the toilet, and never took a shower, only baths.
I was a strange child, and very attached to my toys. :)