Hipster guy: Be right back. (ten minutes later, comes back and sits down) Nevermind.
Hipster girl: You can't “nevermind” a “be right back” ten minutes into said “be right back” time. It then goes from being a “nevermind” to a “back.”
Hipster guy: I was only gone a second…
Hipster girl: It was still a valid time to say “back.” Not “nevermind”.
Overheard by: Rad Rayna