Huh? What do you mean?

I've come to believe that some people need extra special clarification on a lot of stuff. People only half listen sometimes and it really comes back to bite them on the ass when they do it. When ever I come into contact with this habit in many of my friends, I have come to believe that when people do this, they are not truly trying to be mean and misunderstanding of you, but they just have quite short attention spans that need refocusing. Or like cases it can be caused by pure rudeness, a fact that all of us have to face from time to time.
I recently was one of these rude not listening people, a friend was on the phone with me and was going on and on for about two hours over her problems with her boyfriend and other people not being fair to her. I had tried to give this conversation the slip multiple times by using my superior talent of making excuses, but with this girl it was no use, I just had to stay on the phone with her until she was done with me.
I'm generally not a multitasker, but when I'm half listening I can do like five things at once. Being on the phone with her for like an hour got me really really bored quite fast and sensing no end to the conversation I soon plugged in my ipod to my other ear and turned it down low enough that I could hear it but she couldn't. This soon evolved to the checking of my facebook while tuning in and out of the conversation and every once and a while mumbling something supportive.
By the time I was at the max of my multitasking, I was working on my paper for school, while watching TV, chatting on facebook, listening to my ipod, and ultimately talking on the phone. I was quite surprised that I could carry on like this because my genetically inferior male brain is not meant for stuff like this. But boy could this girl talk.
At some point during the conversation I was severely caught of guard when a question was brought to my attention, that didn't have a yes or no answer option.
I seriously thought I was gonna get caught before I pulled out the best trick thought up by guys around the world, I answered with the phrase, "I don't know, how do you feel about that?"
Then followed it up with a "Yeah I know what you mean."
It was truly the perfect deception, I gave her the impression that I was not only listening fully, but I was paying attention to her feelings. It's quite crazy that my trick actually worked but thank god it did or I would have probably gotten the cold shoulder for about a week.