A friend sent this “Mexico City Driving Manual” after reading my piece on the subject earlier this week. If you don’t read Spanish, you should still get an idea of the tenor of this tongue-in-cheek guide from the illustration in the first panel, which suggests making the sign of the cross before cranking the ignition. The instructions become increasingly less holy from there.
The joke here is:
What is the definition of a nanosecond?
The amount of time it takes a driver in Mexico City to blow their horn when the light turns green.