Mexicans are very polite and can seem downright formal compared to residents of other Spanish-speaking countries. People greet each other in elevators, on buses, and shared taxis almost always with “con permiso,” — “with your permission,” — and “propio” — “you may grant your own permission, as you don’t need mine.”
I love all this about Mexican culture. However, it took me a long time to realize that, because of all the politeness, Mexicans really struggle to say “no” and will find any number of ways to avoid the accursed word. Here are just a few examples.