Two times come to mind.
My girlfriend was grounded recently, so for the weekend it lasted I pulled out my dusty PSP and had a good hard run on Monster Hunter Freedom 2 starting Friday. I played until 3:25 AM Monday morning.
Yes, well beyond 24 hours and yes, I didn't play very well near the end. That's why I quit. Needless to say, I didn't get to enjoy her company at school the next day. Kind of pointless actually.
The next isn't me, but it just has to told and gawked upon.
A buddy of mine came across his dad's old DnD set, and decided to give it a go.
He called me and several others to his house for a campaign. I left several hours later for dinner and sleep.
They continued to play and dwindle in ranks over the course of two weeks, taking breaks to sleep at his house. They often said their characters needed to relax and have a small vacation or maybe needed some time to calm down after an adventure, thus filling in their absence for bodily needs.
Pure insanity.
...
But I'd do it if the re-invited me.