I've had component cables that could unplug themselves, as they were so rigid that you couldn't get all the plugs in at the same time. Oy vey. Better made ones are more flexible, and will work on friction alone.
My Place: Premiere XL4 Lifetime 3/26/13 XFinity
3 TiVo Mini's on MoCA
Formerly Win MCE 3TB Ceton4 XFinity
Parents: XFinity Motorola AnyRoom DVR
80 HR Series 2 Lifetime 4/11/04 DEAD as of 11/2010