The Inquisition of the Wannabe Grammarian
He called a truce after being grilled for every questionable sentence, being required to break down his statement, diagram the sentence, and defend his use of a specific word.

For three days we grilled him, catching him in errors more than 60 percent of the time and making it hard for all the time. Finally, he called a truce and we settled on the virtue of communicating, not attention to the rules, and declared a limit upon grammar inquisitions.

He should have known better than to set himself up as the paragon of grammar, the lone knight defender of the purity of the language and its rules. Especially at college.