You know what I find frustrating? You see a little bug crawling around your desk or computer and you decide to be a nice guy and just blow him off as opposed to smashing him. But once you start blowing he uses his little bug claws to really dig in so you can’t blow him away. So you say, “look dude, I’m trying to do you a favor,” and you can hear his little bug voice reply something like, “suck my balls!”
I find that frustrating.