Once upon a time, somewhere in the middling years of primary and secondary school, “mouth-breather” was the height of insults.
Forget savage curse words and frustrating nicknames, being called a mouth-breather was akin to medieval exile. You were relegated to the back of the class, with all the other bespeckled, snot-nosed mouth-breathers to suffer (rather loudly, given the aggressive, non-nasal inhales and exhales). Kids can be mean.
