Staying up all night, repeatedly shunning, or eluding bedtime until it becomes a habit. The activities performed during these times are limited by business hours, although, through creativity, as with many other perceived liabilities these limitations may be turned to assets. The increased darkness also allows people to do things they wouldn't normally do under the scrutiny of the public eye. Sometimes these activities are constructive or just a little odd. For people who work the graveyard shift, it's all part of the job.
Because this involves adjustment of your biological clock you may need to push your system with caffeine(repeating the dosage at least once every six hours to avoid an adenosine crash).
As with most relationships this one doesn't usually remain casual for an extended period of time. If not terminated quickly, it can become a marriage to the night.