Even when he was barely conscious, his strong personality came through. At one point the pulmonologist tried to put a mask over his face when he was deeply sedated. Jobs ripped it off and mumbled that he hated the design and refused to wear it. Though barely able to speak, he ordered them to bring five different options for the mask and he would pick a design he liked… He also hated the oxygen monitor they put on his finger. He told them it was ugly and too complex. He suggested ways it could be designed more simply.
— Walter Isaacson, from the chapter about Steve Jobs’ cancer treatment, summing up pretty much everything there is to know about Steve Jobs in one anecdote: His demands for design excellence and simplicity were so strong that he was a complete asshole about it, and his dedication to those demands could not be deterred, even by death itself.