Note that this list is in no way exhaustive but is merely a guideline for the most common scenarios.
- If the ratio of crust thickness to topping thickness is greater than or equal to 5:1
- If the pizza slice is at least twice the size of your face
- If at least 95% of other people in the room are doing so
- If you are pretending to be polite/clean for various reasons...
- If you have no teeth
- If the pizza burns your hands but not your mouth (unlikely - possibly due to disease....)
- If you are wearing gloves
- If you are somehow able to eat more pizza per second by fork and knife
If you often find yourself in the above situations, the fork/cutter is a must. Found at the aptly named site: Stupid Idiotic.