Who's the worst boss in the US?

Bad bosses aren't uncommon, but according to one report there's one that stands a head above (or should it be below?) the rest of America's managers: Dish Network (DISH) Chairman Charles Ergen. 

Ergen, with an estimated net worth of $9 billion, doesn't allow its employees to have company credit cards -- and for many years would deduct money from an employee's paycheck if they tipped more than 15%, according to Bloomberg Businessweek.

Expecting workers at their desks no later than 9 a.m., Dish previously used identification badges for entry to its headquarters. But after noting that some workers were asking colleagues to "badge-in" for them, Ergen reportedly had the company switch over to fingerprint scanners. 

Ergen isn't warm and fuzzy to Wall Street, either. Sanford C. Bernstein analyst Craig Moffett tells Businessweek that when he first started in his job, he asked to fly to Denver to meet with Dish's management. Dish responded, "We’re too busy creating value around here to sit down and talk about it. Thanks but no thanks.”

Despite his critics, Ergen's focus appears to have helped the company's bottom line: Dish has beaten estimates for five out of the last eight quarters, and its stock jumped 27% last year.

A spokesman for Dish told the New York Post, "It is a challenging place to work." He added that Dish is a "cost-conscious company", where executives are required to share hotel rooms when they travel.

Since Ergen stepped down as chief executive, the company has relaxed some policies: for instance, it's now acceptable to leave a 17% tip without getting your paycheck dinged. 

On employment site Glassdoor.com, Dish receives only 2.2 stars out of 5, based on roughly 600 reviews from employees. That means its workers are "dissatisfied." But one recent reviewer, who awarded Dish just one star, wrote, "Joe Clayton (CEO) put us up to upgrading our score." 

A Dish spokesman tells MSN Money Now that Clayton has encouraged employees to read the Businessweek article and add reviews to the employment site. According to an excerpt from the memo, Clayton wrote, "If you are happy here at DISH, and believe the company is moving in the right direction, log on to glassdoor.com (here) and provide feedback."

The spokesman adds, "It's Joe's regular practice to solicit direct feedback -- good and bad -- from employees so we can improve the business. This is an effort we take very seriously."

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