I would get irrationally mad at myself for being unable to complete such a mundane and simple task, and yet I still couldn't do it. That kind of mental roadblock was impossible for me to understand myself, let alone anyone who hasn't experienced it.
Madness string 122937
The two longest minutes in the world are waiting on your left over pizzas to reheat and watching a lame video while someone says 'Hang on, it's about to be funny.'