You're sort of right. If he'd said "we have zero tolerance for anyone going over 10 mph," it certainly wouldn't have been as funny. Instead, he proclaimed pro

You're sort of right. If he'd said "we have zero tolerance for anyone going over 10 mph," it certainly wouldn't have been as funny. Instead, he proclaimed proudly that "we have a zero tolerance policy" and then explained it only applied to people going 10+ mph over the limit in the next sentence. There's a difference between using the phrase "zero tolerance" to describe what happens in a certain situation and using the phrase "zero tolerance" to describe your policy when it has tolerance built into it. (I un-downvoted your first post)