Have you ever had a childhood memory pop up out of nowhere (see details)

that you had completely forgotten about and were embarrassed to find out that you actually did something that bizarre in your life?

Recently, while reading a book, I dog eared a page to save my place, as I was going to be interrupted soon, and the memory of ripping the tips of the corners off of the pages of paperback books and eating them came bubbling to the surface. I’m not sure why I had that habit when I was younger, but I thankfully outgrew it.

Have you recently remembered any really idiotic childhood habit that you had completely forgotten about? What was it?