1. If I feel like socializing I have to leave my apartment
    What do you mean I can't wear sweatpants everywhere
  2. No one's there to tighten my bra straps for me.
    If you're a female who wears bras there is a 100% chance you have asked your roommate to fix your bra straps before you leave.
  3. I have to clean everything myself
    I.e. Nothing gets cleaned.
  4. When I hear a noise at night and I am forced to prepare myself for my own inevitable demise.
    This happens ESPECIALLY after moving into a new place and you haven't become accustomed with the weird radiator noises yet.
  5. No one to share the Comcast bill with.