When I got my first computer and lived at home my mom saw all the cables for the computer plus my tv, vcr and audio cables (as they were all close together) and said, "We're going to have a fire!!!." I tried explaining to her that only a few were actually power cables but I don't think I convinced her.
Now I'm out on my own with more computer equipment and wires! Although the audio and video stuff is now with the entertainment center. My fiancee now thinks I am a tad nuts sometimes though.
I do try to keep my cables somewhat orderly and bundled.