I was the dinner party guest from hell once.
DD must have been about 3. I'd not long split up from ex-P and while I don't remember being particularly down, a good friend must have thought I needed to get out. She invited me along as a last minute extra to a dinner party at her house with three (childless smug) couples. I explained it was too short notice to get a sitter, but she was really lovely and said no problem, it would be great to have DD there, she's no bother, she can go to sleep upstairs and I could stay with her in spare room etc. Really lovely of her and I happily accepted.
She then said DD would be welcome to join us for dinner. She'd serve up early and then give me chance to settle her before dessert. All good, except friend didn't communicate this to her partner, who was cooking, so he ended up rushing the cooking and serving up the minute the other guests arrived following some urgent hissed whispers in the kitchen.
DD was pretty hungry and tired by this point and not being particularly charming. Friend had chosen to serve pasta because I said she'd eat that, but friend's DP mixed all the pasta in with a rich tomato sauce which DD flatly refused to eat. The more tired, hungry and whingy she got, the more fuss she was making about everything that was put in front of her, to be met with patronising pitying looks from the smug marrieds.
She flatly refused the pasta with tomato sauce on it, and in my desperation to get her to eat I ended up sucking the sauce off each bit and handing it to her. She then started saying it was too hot, (she would only eat cold things at that age) and I snapped at her, saying it was completely cold and to stop being silly. The host overheard and grabbed the plate saying "so sorry -I'll warm it up for her" and I had to chase him into the kitchen to rescue it.
I was so stressed at the hassle we were causing I couldn't relax and just wanted to leave but couldn't as I'd had a drink. I went up to put DD to bed and stayed up there about 2 hours and pretended I'd fallen asleep next to her!
I know at least one of those couples has two young kids now. I really hope they look back and change their judgy opinion of me!