They’re called the Working Dead, a play on the popular AMC zombie series, The Walking Dead, which just came back to life with a show marathon last weekend (pun intended).

But there’s hardly any entertainment value to hiring a deadbeat, according to an infographic by staffing firm Vitamin T.

Mashable reports:

Vitamin T has run the numbers and it turns out that a bad employee could cost you upwards of $50,000 when all is said and done. While salary makes up part of the figure, to really calculate the full cost, you have to factor in recruiting, lost business, training and possible legal action.

To help avoid a spreading zombie contagion in your own office, Mashable suggests “4 Ways to Make HR More Efficient.” Suggestions include using social media as a recruiting tool, making sure there’s a feedback mechanism to sniff out poor performers, and streamlining policy processes like vacation and time-off requests.

Along the same vein, the “Evil HR Lady” (no word on whether she’s a zombie slayer, ala Rick Grimes) over on the Intuit Small Business Blog offers up her thoughts on “How Much Downtime Employees Should Get on the Job.” Hint: It’s all about performance.

My suggestion is to look at overall results, and don’t worry about what your employee is doing right now. Some people’s brains work better with a bunch of little breaks; some people’s don’t.

And some people’s brains have already taken the road to Zombieland.