Tear gas at "Tough Mudder"?

Tough Mudder is adding "tear gas" to its list of torture devices in its tough-as-nails obstacle course.

The Downtown Brooklyn company designs the physically and mentally challenging obstacle courses worldwide.

They are set to unveil new elements in their 2015 obstacle courses on January 13th and the addition of tear gas might be the most grueling yet.

Many of the courses include electric shocks, a plunge into freezing water and falling through a ring of fire.