Groceries

Your roommate cannot be the only one buying food for the place.  You have to chip in.  If you're eating there, then you have to spend some money.  You can't depend on your roommate to buy all the food for a month and you only shop one time in three months.  It's even worse when you bring your friends over and they eat all the food too.  Get up off your lazy butt, get a job, and go buy yourself some food because otherwise you're going to starve.  It's not your roommate's problem, so don't go whining to them.  They should hoard all the food somewhere that you can't find it so you'll have to do something.  You might think it's not fair, but trust me, it's the way it's got to be.