I would have done "All of the Above", but had to narrow it down to GLaDos. She is my ringtone, after all.
"You are receiving a telephone call. For the convenience of those around you, please acknowledge it. Failure to recieve this call in time will result in an unsatisfactory mark on your test report, followed by death. You aren't going to pick it up. How rude. Your parents would be ashamed of you. I'm ashamed of you, and I don't even know you. No wonder nobody likes you. I find it hard to believe that you're receiving this call at all."
(Yeah, I can get a few REALLY odd looks if I don't pick it up before the end of the second line... and even then I'm already getting smirked at by at least one person.)
I still get calls for "OVAL GAME!" from my 3 and 4-year-old. They both love watching me play, and when the valentines day video was released, I hopped over to Steamworks to check it (favorite was the Queen Bee) and the rest of the Portal2 videos out. I sh*t you not, the two of them watched those 10 videos loop for the next hour and a half without a moment's pause. It was the most peaceful time I had for the whole week.
Now, I keep the "Oval Game" videos on standby for those times when interference can not be allowed... cooking, washing, a chance to snog their mom for a minute in the living room.
I already have the preorder for the PS3 version set through Amazon (GameStop can burn... besides the exclusive skins are atrocious) and a Steam version will be gifted to my sister so we can co-op.