This thread reminds me of 2 instances of "hostessing fail."
Back in the dark ages, when X-DH and I were newly married, we became friends with another young couple. I admit, part of it was "pity friendship" because the wife had trouble making friends. After dealing with her (and her equally daft DH), it was obvious why.
Her DH and I had birthdays very close together. She invited us over for a birthday dinner, complete with cake/ice cream, and a wonderful gift for me. You see where this is going?

We got there, and there was no food. Then she and her DH started arguing about what pizza place we'd order from. We eventually ordered some pizza, which we paid half of (so much for "hosting"!). There was
no cake/ice cream and
no b'day gift for me. We'd brought a nice gift for him, which he promptly opened, looked at it briefly, put it down and was asleep and snoring within a few minutes.
To add to the "fail," their roommate, who was in the Navy like the DH, originally said "no" to having some of the pizza when asked as we ordered. Well, he apparently changed his mind and took a couple of pieces; he'd contributed nothing to buying it. So the night was a complete bust, and after that we decided to stop socializing with them altogether.
The second story occurred only a couple of years ago. I was driving from NJ to Long Island to pick up something at an acquaintance's home. He said to come hungry as they'd have a yummy dessert waiting for me. I got there, and had to wait for a long time as he spent an inordinate amount of time showing me stuff. Not only was there no dessert, but then he and his wife got into a huge fight in front of me (and their poor 5-yr-old DD).