In high school I worked with this really hot girl that hit on me but I was too dumb to realize it. I was a nerd growing up so I assumed any kind of flirting was part of some sick joke to mess with me. One day she was late coming back from her 10 minute break and I was busy with a long line of customers. She walks up to me and says, sorry I'm late, I was busy. Then she stuck her two fingers under my nose. I flinched and gave her the what the hell are you doing look. Her fingers smelled really weird. It took years before I got to the third base of the girlfriend and immediately learned what that smell was.