There have been lots of articles mentioning Dorsey taking sewing classes, sketching classes, going sailing, etc while running Twitter. (And in moments that outsiders consider crises, and employees were working longer hours to hit deadlines). The 6/4/1 is an exaggeration, but still...
Dorsey often tried to act as if he were in control, posturing that his actions were all part of a bigger plan, but employees saw him frequently pacing in frustration around South Park. He also habitually left around 6 p.m. for drawing classes, hot yoga sessions and a course at a local fashion school. (He wanted to learn to make an A-line skirt and, eventually, jeans.)