Some housemates refuse to clean their dishes, while others will consume your plainly labeled leftovers with no regard for human decency. However, there are other roommate issues that are far more serious and can have a long-term influence on your financial future. For example: drug use, sexual activity, and mental instability are all signs that you living situation is not right for you. If someone refuses to clean up after themselves, it's a sign of disrespect to you and your family. That kind of behavior should not be tolerated in a housemate or roommates. You may want to discuss this issue with them directly, but if they don't get rid of their dirty dishes quickly, then you should find another place to live. Otherwise, you might be forced to move out at the end of your lease because of neglectful housemates. People who cannot be trusted with cleaning up after themselves should not be given access to your bathroom. If you find drugs or evidence of drug use in your home, you should call the police immediately. Drug users often keep their drugs in plain sight so anyone who enters your home could easily overdose if they decided to break down your door. Keep your friends and family informed when you're renting out rooms in your home, and only let certain people stay there. Only give keys to responsible individuals who you can trust not to hurt yourself or someone else.