Rules often have exceptions. For example, water boils at 212 degrees Fahrenheit, except when in high altitudes. At five thousand feet above sea level, the boiling point for water is 203 degrees Fahrenheit. All the way up at ten thousand feet, water boils at 194 degrees Fahrenheit (“Effects of Altitude on Water Boiling Time,” Mountain House, February 15, 2019, https://mountainhouse.com/blogs/backpacking-hiking/effects-of-altitude-on-water-boiling-time). Just as there are exceptions to the norm...
Exceptions To The Rules