re: What was your worst day of high school?

One night I went to run at our high school track because I couldn't sleep. I finished running and saw a car parked not far from mine. I walked over and saw it was my best friends dad who was cheating on his mom. They both saw me. I didn't say a word to anyone. About 2 months later I went to the store across the street from our school with my buddy and ran into his dad talking to the lady he cheated with. My friend didn't really think anything about it until his dad looked right at me and said "did you tell him?" I didn't of course but had to after that. I felt like I had broken some kind of code and did nothing wrong. I didn't think it was my place to say anything. After all these years I don't know if I would have done anything differently. I'm still friends with the guy but not near as close as we used to be.