i changed the locks

if you're feeling exceptionally tired & crabby, here's a tip from a professional in the department:

--don't let one of your children (that is prone to destruction) listen to your ipod just because you allow the older one to have a go while doing copy work.  the child that is prone to destruction will figure out a way to pull your earphones apart & disconnect the wires.  then, of course, you'll hear, "it's not workin'!  it's not workin'."