I can think of a few, and most have to do with my fear of fire:
I was in a dark basement and my friend Jacob was hiding behind the door. He jumped out and grabbed me, and I punched him square in the face on impulse. I apologized, but it still frightened me.
My Aunt had this cat, and I was 3. I was being stupid and walked up to it with my adorable baby face and it rolled it's eyes back in it's head and hissed. I fell over in fear.
(This is more sad than scary, but it still chilled me) I was in a store and this lady looked like she'd been in a fire. The poor woman's face was just... I felt really bad, but was still kinda scared.
I was in a hospital, and to get to the room where either my Dad, Mom, or maybe aunt was after some simple surgery, I had to pass through a ward that contained lots of patients missing limbs or burned or with lots of tubes and stuff going into their bodies. I felt bad, but it was still scary.
I walked past a severely burned building were I was pretty sure I'd heard that someone had died in the blaze. It was a creepy revenant of a building, with missing walls, melted windows and I could swear I heard someone crying, but it was probably my imagination.
I was in a hotel that had a really loud air conditioner that made a "Bzzzzzzzz" sound. I was half asleep (and just to let you know I hate bees, probably because of getting stung by one when I was little in the back of the neck), and I was kinda half dreaming. I saw a giant bee flying around in the corner (and giant, I mean like 3 feet tall, 2 feet wide) and I was freaking out.