Other than people asking you to show your body parts via web cam list some rude IM behavior you have encountered?
My favorite is I am talking with Asians (they also live in Asia) I know in the real world and next thing I know they change there status to "Away" or "Busy". No notice or anything and I am sitting there like an A-hole waiting for them to come back. Many times they never come back. Is this just an Asian thing or is it universal?