It looks like this Great Pyrenees escaped plenty of kennels in his day. Or rooms. Or really anywhere that might have doors with handles instead of round knobs.
In the video below, you can see General, the Campbell family's 10-year-old Great Pyrenees dog, nonchalantly opening the door to his kennel at a boarding facility in Stafford, VA, and then opening three other doors to wander outside the building. Fortunately, they found General in the yard of home a few hundred yards from the animal hospital.
According to the Campbells, General is REALLY good at opening doors. They told the staff at the kennel, although they say they've never had an issue with General escaping anywhere they boarded him before.
Maybe the next time the Campbells board him to go on vacation, they should probably look for a kennel with round knobs instead of handles on the doors!