My mom has a large volume of pictures of me naked in various locations - at the beach, in the neighborhood, etc. This ended at age 4 when I can assume I developed a sense of shame or my parents realized that it's no longer acceptable for their daughter to run free in the neighborhood.
My favorite pic though is the one where my older brothers are taking their bath together and I climbed into the tub dressed in my PJs to join the fun.
Simple words to live by...
When someone annoys you, it takes 42 muscles to frown, but it only takes 4 muscles to extend your arm and whack them on the head.