These are the worst type of managers. The ones who consistently arrive late and say "sorry, I've been in back-to-backs all day" or, "sorry, meeting with the big

These are the worst type of managers. The ones who consistently arrive late and say "sorry, I've been in back-to-backs all day" or, "sorry, meeting with the big boss" - the subtle implication is that they are the only ones that busy or with meetings that important. Those same managers will take ages to respond to emails because they are "so busy", but yet they insist on inserting themselves into all decision-making, because obviously nobody else can make a decision without their approval.