Old but gold!
Once you've read the "A survival horror game" sub-title, there's a strong sense of foreboding with what you're getting yourself into... and it's brilliant.
I think the main selling point here is the number of diverse ways you can end up failing your 'quest' to relieve yourself; it turns into an adventure in itself figuring out how to unlock all the in-game awards. It's also an added bonus when you uncover a glitch or two along the way; I didn't subtract any points from that, because it's a rather uncommon occurrence.
The attention to detail is great; graphically it might not look like much, but the text is brilliantly written, and is no doubt the highlight of the experience. All of the commands you'd associate with the situation are pretty much here, but you also have to think out of the box in order to successfully avoid soiling your pants. But without any toilet paper present in the bathroom, it makes you wonder if winning is even possible... ?
This is some twisted John 'Jigsaw' Kramer morality, man.
Don't Shit Your Pants is a pretty fun and rather relaxing take on the text-based genre of gaming, because it rewards you for messing up along with winning. I think you'd need to possess the [in]correct sense of humor to truly appreciate it as art though. Not a whole lot to say here, for the abyss of using a virtual toilet is something best left explored by yourself. Good stuff.
Just as fun 10 years later.