Gotta Love Realtors!!

So I am in Twin this morning in a fetal monitoring class when my phone rings. It's our realtor saying that someone wants to show our house this afternoon. They aren't sure on a time, but they think somewhere between 1:30 and 3:00. I was too tired last night after they boys were in bed to clean so I can't say the house was in the greatest shape for showing. Dan worked last night and was sleeping, so I called to warn him. He had to cut his sleep short and get up and get the house ready. This has happened to us before and he is so great about getting the house in order. However, it is really frustrating when people don't show up. Needless to say they never showed. The only saving grace to Dan getting up early and getting the house ready was that another realtor called to show the house. My question: Do realtors not realize that a little notice and consideration (when someone in the house works night shift and you have a couple kids) would be nice. Dan has actually been in bed sleeping before when realtors have shown up to show the house without even a phone call. I think someone needs to write a realtor book of etiquette.