You want my advice??? Here's what you do. Wait until your parents fall asleep. Once they do closely watch them and look for eye twitching. This is REM sleep. the deepest. At this point you will want to make sure you can kill them both at the same time without one waking up while you are trying to kill the other one. Once you kill them both you will want to chop them up into 8 pieces each. You will want to dump their heads in two different lakes or streams. You will want to eat their livers for internal peace. Please keep at least one femur in order to construct a pipe. Also, you will want to save their lungs and kidneys as these organs have tremendous value on the black market but deduct 11% if they are actually black. If you watch Brokeback Mountain backwords you might want to have sex with your dead parents so I advise against this. Good Luck.