Oh god, the douche thing happened to me with an ex. It was fairly early days so I was still shaving my legs all the time and making sure I was supersupersuper clean. I got home from work (before my WG days) and grabbed my douche. I hadn't been to the toilet all day, but I was in such a rush that I thought it would be OK. Douched. Showered. Did my make-up really quickly, put on my cute new white underwear. Got a text from my ex saying he was 10 mins away. Jumped up off the floor where I'd been getting ready. Had a watery explosion everywhere. Luckily I had wooden floors! I've never moved so quickly. Cleaned up the mess. Had another shower. Lit like 100 candles and sprayed perfume everywhere. Opened the door looking flawless. I told him a few months later and we laughed really hard about it. But at the time I was devastated.
Work wise, I recently got a last minute booking. I'd been out all day with a friend. Turned up to this guys serviced apartment, not really in the zone as it was so last minute. I'd had a few glasses of wine with my friend, something I wouldn't usually do if I knew I had work on. The guy wanted to get a little kinky with spanking etc. He had possibly the worst sex face I've ever seen, all screwed up face and crazy eyes. He also made constant grunts and growls. Now, I don't really drink and the wine had gone right to my head. I tried to be cool and just get on with it but his growling was so off putting that I burst into fits of drunken laughter. Luckily I'm a total performer so I managed to pass it off as wild sex noises. He probably thought I was orgasming like never before, but in reality I was just trying to control my hysterics.
Another time I took some toys to a hotel booking, including a butt plug as the guy wanted to do some anal play on me. In the end I used the plug on him as he seemed really keen to explore after I gave him an awesome rim job. When it came to me slowly pulling the plug out he let the longest, loudest fart out that I have ever heard. Honestly it was like something out of a slapstick movie. I didn't think it was ever going to end. Luckily I was giving him a really sloppy handjob with my other hand, so we just kind of styled it out. But I swear, it went on for like a minute. Sometimes I'm amazed at my own composure.