My knack application is now an integral part of our company operations. I've spent months building and fine tuning it, and it has really made everyone's life easier.
Its so important, I have literally had nightmares about it being accidentally deleted. All I would have to do is groggily to hit that evil little X and click though to make my beautiful app and job disappear before you can say "Sorry honey, you're going to community college."
The ability to make back up copies has helped my blood pressure some what, but my digital baby still represents a huge amount of time and money. If there was a way to require one to enter a password before deleting an application, I feel it would add an additional level of protection to valuable applications.