Because once a week I do the following:
1) Go to the break room when several others are present.
2) Open a can of sardines or kippered snacks and dump them out on a plate.
3) Extract my quart jar of Kimchi from the office fridge with much fanfare.
4) Spoon Kimchi liberally over top of sardines or kippered snacks.
5) Eat this with much exuberance, proclaiming often the goodness of this food.
6) Watch educated folk in a professional setting be consumed by the topic of flatulence.
Instigation is fun!