Potluck nightmares

Ladies, I am upset and would like to vent here.

I recently arranged a pot luck for the indians in the neighborhood. Everyone wanted to meet so i look the onus of arranging a potluck. I called up everyone a month in advance. Everyone was excited. The plan was simple, meet up at my house, have appetizers, games, lunch, cleanup. Everyone would make a dish and common expenses (juices, soda, paper products) cost to be split up by person. It was fun but I had tough time overall because of some of the characteristic ladies. Here are their characters. There were at least one of each character in the group.

character 1: Called the evening before the event. She was to make rotis. I ended up making the rotis in addition to my vegetable dish. Also, had to recalculate the split cost and had to inform everyone.

character 2: Came an half an hour late to the party in a low neck sleeveless dress and all the while hang around with the gents along with her husband. I and other ladies were busy arranging, warming the food. She then went on to host the BINGO game and soon after lunch went away saying that she needs to go to another party. No help at all for cleaning. For food, she said she is working (i am working too) and got only the drinks (the cost was again shared).

character 3: Her focus was totally on her kids. She influenced the menu, my son does not like this, my daughter does not eat that. For all the fuss, she takes on the great responsibility of making rice. During the party she says she felt bad making rice only so she made a biryani (just sprinkling a few peas and jeera tadka and that's biryani!!!). The quantity was hardly enough for half of the people. And then latter she says, everyone loved my biryani, nothing is left !!! Just as we were enjoying the game, she comes to me and says her kids need to eat now. So i and few others had to leave the games and go to prepare the food. Can't her kids wait? They just had appetizers.

character 4: She said she will be four and ended up coming 8 (Had a family visiting them). Left early, need to take the family out on a sight seeing. Made daal, which was tasteless and very blend. While leaving, she said oh i don't have money right now. I will pay you later. It has been over a week now. i hate to ask for money.

Not sure if you all had experience with such ladies and how did you handle them.

Potluck nightmares