I purchased a Macbook Pro on Saturday and have a question about the MagSafe charger. This is my first Mac, and I know the magnetic charger is supposed to be a safety feature, but it's really annoying because it falls out with just the slightest movement of the computer. I use the computer on my couch and the charger falls out several times a day with almost any movement I make (i.e. reclining or sitting up on the couch or putting the computer down on the end table). The power outlet is right next to me, so there's not a lot of tension on the cord. Is it supposed to disconnect so easily? I thought it was only supposed to come out with more force such as someone tripping over the cord.