He opened a terminal and typed the only command that made sense:
"I'm the Vimmer. You invoked me when you piped head -n 42 into Vim without a file. Big mistake. Or big opportunity. Depends on your :q! reflexes." 42 header vim
Nobody asked what a "42 header" was. They just fixed the CVE, gave Leo a raise, and bought him a mechanical keyboard with blank keycaps. He opened a terminal and typed the only
"Who are you?"