Furniture

Mom: I can't understand why you're afraid of heights.

Me: Why not?

Mom: When you were a baby, we had to bolt all your furniture to the walls 'cause you would climb up on your dressers. You would walk along the back of the couch, and climb counters to sit on top of the refrigerator.

Me: How old was I?

Mom: Uh... probably about 11 months.