“Nothing is so aggravating as calmness.”
“Miscommunication causes so much aggravation!!”
“There's nothing more aggravating in the world than the midnight sniffling of the person you've decided to hate.”
“There is nothing more aggravating than a man who won't talk back - unless it is a woman who won't.”
“What's most aggravating is feeling like I'm a radical for saying something so commonsense.”
“Ignorant people think it is the noise which fighting cats make that is so aggravating, but it ain't so; it is the sickening grammar that they use.”