Fold in Bathroom

This incident took place when I was 5 years old. I had learned how to fold my bed cover. One day me and my sister were folding our bed covers at the same time, as our room was quite small there was not too much of space to stand and fold. I got angry and went to the bathroom and folded it there. I didn’t know I should not do it in the bathroom. My parents and sister had a hearty laugh at this incident. Later when I was a bit older I realized what I had done. I still feel ashamed of myself of doing such a thing.