Generally, I think I'm quite a bright person, but sometimes I do the dumbest-ass things.
When I was in High School our Maths teacher let us listen to our MP3 players as long as we were doing our work. My headphones had a L and R on for 'left' and 'right'. I took my headphones off and noticed these little letters, and I turned to my friend and said:- "I think the company made a mistake with my headphones, one's large and the other's regular". It was legit as well, I actually thought it meant 'large' and 'regular'. People made fun of me for SO long after that.
