Most awkward moment having an accidental dick slip/exposure, and/or a guy having one in front of you?

Didn't expose my dick in this particular instance, but I certainly put on quite the show. Was commando as I always am, and was wearing my heavy ball stretching weight under my extremely thin polyester shorts. My dog was out front with me as I was working on a yard tool. He suddenly started bolting across the street toward a very attractive girl who was walking her dog. I ran toward her to get my dog, but as I was running, my cock and balls were literally flying all over the place because of the weight I was wearing bouncing like hell. Each time my cock pushed against the material of my shorts, the outline of it was plain as day (she definitely knew I was cut!!!). I got my dog and we returned to the house. While neither of us said anything, there was no chance whatsoever that she didn't see all that action.
Well the other day I was out front cutting the grass and this same girl happened to be out walking her dog again past my house. She smiled and waved. I know she was just being friendly, but I also think it meant two other things: she wasn't upset that my dog came towards hers earlier (my dog was not threatening, only curious), and it also meant that she wasn't offended by the obvious show my cock and balls put on that day as I ran towards her to get my dog!!!
 
Come on guys, purposely showing of your dick isn't an "awkward moment having an accidental dick slip/exposure". If you want to show off the good, there are a huge number of threads to do so, most notably the Show Off forum.
 
Possibly not the most awkward, but when I was younger I was in the pool at home with my brother's, cousins and uncle. Full family BBQ day.

My uncle was having us get on his shoulders and launching us out of the pool. All fun and games until my brother told me to try on his shoulders. He was holding my swimmers as I got my balance and as he launched me up he kept hold of my swimmers, pulling them down and off. Unfortunately this resulted is a false start of sorts, I went sideways, hit the side of the pool, broke a brick and cracked my head.

I went blank for less than a minute. Came back around I found myself standing but trying to be coaxed to the ground. A towel catching the blood coming down my face, still naked, and peeing while sporting a concussion induced erection.

Is immediately mortified by my obvious state but everyone was more concerned about my bloody face.
Later, while still mortifying to me, everyone else find it hilarious
 
Not a slip, but definitely exposure. I was at a party one night, and got into a conversation with a gay couple I didn’t know very well. One of the guys I had known for a long time, but didn’t see him often. We had all been to Palm Springs fairly recently and were comparing stories and photos. I handed the guy I knew better my phone to look through my photos of Palm Springs, and was more focused on the other guy for conversation. Next thing I know, the guy with my phone has gotten himself into a different album for a trip I took to a nude beach in Mexico. He tips the screen back my direction so I can see what he’s looking at, and see he’s got a picture of my naked on some rocks by the beach. He commented on the size of my dick, and mentioned I was hung like his boyfriend. I took my phone back, before he could show it to anyone else, although I did end up letting the bf see it cause I felt bad he didn’t know what we were talking about. The conversation then turned to going though TSA, and how often the hung bf and I get patted down. Shortly afterwards, I moved the photo to a private album to avoid a repeat situation.
 
It happend to a classmate. After sports classes there would be no showers, just all of us changing out off our shorts and shirts without getting undies off. One of the guys was wearing loose boxers and as we changed i saw his dick starting to get semi-hard and finding its way out of his boxer's fly. Quite exciting to observe as i wanted to know how big he gets. One of the other guys noted it some seconds later and went hysteric. So he had no chance to get fully hard. He got quite some comments on that by some of the guys but fortunately they rapide lost interest in the topic,

Ha! very similar thing happened to me, posted it on Underwear gaps

OMG this brought back a very long lost memory from the few years I used to wear boxers. I was changing, and a friend who was stood next to me said "I can see your willy" or "your willy's sticking out" (or something along those lines). I wasn't aware the button was undone. So embarrassing at the time. Now I would joke about it.