When we sold our first house in Connecticut, the buyers low balled us on the offer, and we accepted after some negotiation. However, it turned out that they didn't have the financing right away, so they pushed back the closing.
By this time, we'd gotten a bridge loan, and had taken up residence at the new house. By pushing back the closing (by 60 days), we were forced to spend 2 months paying 2 mortgages. Suddenly, we were looking at getting cash advances and asking relatives for grocery money.
Nearing the new closing date, we were starting to breathe easier. Things were going to complete, and we were going to get out of this mess with only some minor damage to our credit (holding bill collectors off with a stick, etc). Then their lawyer calls our lawyer, and says: "Sorry, we still couldn't secure funding, but we have a signed contract with you, and if you try and cancel the deal, we'll sue you. So, we're pushing back the closing another 20 days." We agreed to it on the terms that they drop any complaints on the condition of the house (it was a 100 year old house, and had some problems).
We struggled through those last 20 days, warning the kids that since it was getting to be December, we may have some trouble getting them anything for Christmas. They were pretty understanding about the whole thing.
On the day of the closing, the buyer shows up in my lawyer's office. My lawyer and his secretary decide to tell her that they've got a lot of paperwork to settle before they can assemble the documents for the closing, apologize profusely, but if she could just wait there in the waiting room for a bit, it won't be too long. She ends up waiting there for an hour. My lawyer? He's sitting in his office with the TV turned up loudly, occasionally asking his secretary out in the front office if she knew the number for a sandwich place, or something like that.
I love that guy. I send him holiday cards every year, now.