The Post-Modern Prometheus - S5-E5
[After spilling coffee on his lap.]
Mulder: Great, now my crotch will be up all night.
Lt. Arthur Fancy: The future keeps telling us what the past was about. You make the past mean different things by the way you use the time that comes after.
Fitz: So - you don't drink, you don't smoke, and you don't gamble. What do you do then? C'mon Michael, there must be something for you to confess! A little wank on the sofa during Baywatch isn't a mortal sin.