#15 Old Faithful
I was in Yellowstone on a family vacation. For those that don’t know, there is a geyser there called “Old Faithful” whose big claim to fame is the fact that it rather regularly goes off about every 90 minutes. As such, the Parks Service has a sign with an estimate of when it will be going off next.
On this particular day, the geyser was about 15 minutes late and there were NUMEROUS people at the information desk to complain about it as if they have some sort of button that they simply forgot to press.
Credit: dradam168