Should you rotate your hip to full lock out for a straight right punch?
Evidently, you match then to the size of your tires. Those look pretty much like tire sizes to me. Unless you live somewhere out west though, check your state and local laws before you buy chains. Most states east of Colorado don't allow you to use chains on the roads. Many don't allow tire studs anymore either.
When i lived in a dorm we had fire drills once a month, they sent us an email letting us know there's a drill at 8PM the next day or something one time though there was a false alarm, some people were playing soccer in the hallway and the ball hit the fire alarm.. The odds of you being in the shower or sleeping during a drill/false alarm are really low