far too many
Many moons ago I worked for a company that had some of the worst managers that ever lived, I worked there for three years and can honestly say dim witted fucktards were at every level, highlights include:

One department had twelve staff, nine of them had manager in their title.

The director of finance always getting the budget perfect, mainly because it was published in July and was achieved by doubling the figures for Jan to June.

A team leader who refused to talk to new starters or allow any other team members to talk to them, even going as far as loudly shushing people who tried to say hello, this would go on until they left or another team leader stepped in.

A manager who refused to do anything about a driver who was a chronic alcoholic, when someone else approached HR and informed them of the danger to the employee & public HR said it was nothing to do with them. So a total alco drove around in a company van for years, in the end the only person he killed was himself, liver failure in his late 30's.

The department manager who got a phone call during the Christmas party asking where he was, for three hours he had been in the wrong hotel talking to total strangers and failed to realise that he did not recognise anyone.

A fistfight between two mid level managers while in meeting with suppliers.

When a big international taking place early in the afternoon all staff were told to start work two hours early so they could leave in time to watch the match. The managers with keys turned up at the usual time to a carpark full of pissed off staff who had to then their usual hours and miss the footy.

A manager who misspelled her name differently on four consecutive letters to the same client.
(cname, Fri 11 Jun 2010, 17:48, Reply)