by dharden » August 9th, 2009, 7:53 am
Some are specifically designed so that only you can trigger them. Others are designed so that you can trigger them, though a few of them are set up so that you can't untrigger them.
Many are vague on the matter. They don't specifically say that you can trigger them, but they also don't say that you can't. With them, what's liable to matter is what you believe. If you approach a file believing or expecting that you'll be able to trigger it, you probably will be.