Ugh, I have this friend that will call me 5,000 times a day, and while I'm on the phone, she will start having conversations with her family (not like her mom saying, "get off the phone!", real convo's like "how was your day?"). She even puts me on hold and calls her other friends!
I have this other friend who ignores me all the time, and then when I get all angry and pushed to the point of insanity, she finally tries to talk to me, ending in my blowing up in her face.

I'm too chicken to tell them this kind of stuff annoys me face-to-face, so I post angry away messages online when they come on, and hope they get the point. (Ah, the power of the internet )