Left a full condom at my parents bathroom when I was about 18. Mother just said "Maybe you should clean after yourself, mh?". I realized what's up when went to the bathroom. Was fukkin awkward at that time.
2.Was chilliing at my gfs house, her parents left for some grocery. I started sexy time, she was like "They will come back soon, let's wait for the night.", I said "Naah, we will hear the car.". Guess what. I'm smashing that pussay with a power of ISIS suicide bomber exploding, she's moaning like crazy and suddenly we hear her mother saying her name behind the room door. I was 20, she 18 at that time. Even more fukkin awkward situation.
EDIT: One more (good). Got sucked my dick at one of the teachers table by my gf of that period (we were supposed to clean the class for some reason or some shit) at high school.