I've told this one before, but I had a massive crying fit one Christmas. I do all of the planning, shopping, wrapping, cards etc for Christmas, and as part of that, I plan the meals for the week. Christmas Day was roast goose and all the trimmings. Boxing Day was cold roast gammon, baked potatoes and coleslaw, and the next day was left over roast goose, shredded, and cooked in honey, five spice and soy sauce - but when I went to the fridge to get the left over goose to shred it, half of it was missing.
Ds2 owned up to having eaten the cold goose in a sandwich at lunchtime, and I completely lost the plot. I think it was the culmination of all the work and stress I'd put myself through, in the run up to Christmas - but I shouted, cried, and snotted everywhere, until dh took me off to the front room, and gave me a very large sherry to calm me down! He then went off and made a lovely meal of cold goose, cold gammon and salad - because, of course the house was full of food - I just couldn't cope, right then, with the Plan having changed.

It gets mentioned every year, now. Someone - usually ds2 - will 'innocently' suggest they have a cold roast goose sandwich for lunch. 
Another one - when ds3 was only a few days old, I was asleep when the midwife came to visit, so she and dh decided they wouldn't wake me up, and she left. When I woke up and he told me this, I burst into tears - and I still have no real idea why! There wasn't anything worrying me, or anything I needed to talk to her about - everything was going just fine - I can only assume it was the 5 day blues. Poor dh was completely baffled by my reaction.