Two guys making their way across America, on their way to California discovered that a certain hotel in New Mexico isn't the most secure place to stay.

While they were getting ready for bed, a stranger opened their hotel room door. When they confronted the hotel night clerk, they were told, the stranger was 'accidentally' given a master key.

The next morning, these same two guys decided to check if their hotel room key was a 'master key' too. What you'll see in the video above will have you checking your next hotel room key card too.

Remember to always lock all the locks in your hotel room and never leave valuables behind.