Farts that smell really bad( like dead animal in the sun bad). This is caused by eating Taco Bell, or any other Mexican food.
Eating Mexican food before a flight might cause the TSA to refuse you the right to fly.
Mexican food on your wedding day is a bad idea(unless you want clear the place out fast).
Mexican food before church makes you sit in your own pew. This will make the every baby in the crying room cry and the parents wounder who did it.
Eating Mexican food before a movie will cause a riot in the movie theater when a fart is released.