My biggest RP pet peeve is people referencing an ongoing and unfinished scene in custom conversations. I don't mind having both going on at the same time if they're different topics, but I have no idea how I'm supposed to respond to something that's still playing out, and especially if you're talking to my character as if the scene went a certain way when it hasn't yet. If you don't want to write the scene anymore, just ask to plot, or else now I just have no desire to finish the scene or continue chatting in customs.