haha you reminded me of one... perhaps not MY confession to make...
My best friend used to always do that outside! On the sidewalk, on someone's lawn, anywhere! She was too scared to ask to use a washroom when she wasn't at home, so she'd just pull her pants down and do it wherever she was!

That was when we were about 6 years old. When someone brought it up recently she DENIED DENIED DENIED!!! But I know the truth

and so do my parents! But you didn't hear it from me! lol