The NFL like most other professional sports leagues has random drug testing all year round. That means regardless of where ever you are, you can be drug tested at any time.
Washington Redskins quarterback Kirk Cousins tweeted out earlier today that he received the most random of drug test he’ll probably ever experience.
According to LosThatSportsBlog, Cousins got his random test while visiting his grandparents home.
NFL's off-season drug testing at my grandma's town-home! I'm all for a clean game but weird having a stranger watch u in your own bathroom
— Kirk Cousins (@KirkCousins8) March 13, 2013
No word on whether or not Cousins failed or not.