I want to keep my MBP from ever entering clamshell mode. All I can find about it in google are explanations how to enter and leave clamshell mode. But I never ever use it only accidentally activate it when I close my MBP to enter sleep and put something on the table and the mouse wakes it or remove some USB device after closing it and it enters clamshell. It is annoying I want to disable the feature entirely. There has to be some kind of switch.