Here is the story.
A guest booked last night and today. He did self checkin at 8:45pm. A few minutes after he checked in, he asked me if the temperature could be set up a little lower and if I have iron and iron board. I have another guest who checked in one day before he did. That guest asked me to put the temperature at 74F. I told the guest that I could adjust the temperature at 72 F so that both guests can still feel comfortable. He did not disagree with the temperature I set.
For the iron and iron board, I don't provide them in the amenity of my listings because it happened once that a guest did not shut off the iron after done and almost caused a fire. He immediately answered "Oh No, I will manage it".
One hour later I received a call from Airbnb and I was told that the guest wanted to cancel because the temperature setting was too high and the house was too hot. At that moment, I looked at the thermostat which was at 71 F. At that moment the outside temperature was 65 F. Airbnb CS asked me if I could refund him. I told Airbnb CS that I could refund him the second night since there is no way for me to rent out last night at 9:50pm. This guest did not tell me anything about the cancellation until Airbnb called.
10 minutes later I was bombed by the guest messages accusing me cheating and sent me cursing messages. I could repied that please pay respect. Around 11pm, I received a cancellation notice from Airbnb. And Airbnb told me that they issued full refund to the guest while still pay me the cleaning fee and the first night as I told them.
Today I went to check the house. I could see white foam substance in the toilet and in the bathtub. It seems that this guest is a drug user. This guest booked instantly because he has five 5 star reviews. I am waiting for the email from Airbnb about writing a review unless Airbnb has changed their policy. Definitely I am expecting a 1 star retaliatory review from the guest. And I can foretell what kind of lies could be in his review based on his messages sent. In his message, he said that his room temperature was 100 F while the maximum temperature of the day was 84 F and it was <65 F at the time he sent me message.
Your comments, inputs, suggestions, and similar experience are welcome.