This is perhaps, not a good idea.

On a number of times I have just tossed the N900 in my jacket pocket after using it to check the weather or something. It's easy to do if your in a hurry and I'm thinkin' others have done this as well.

More often than not, in the time it takes the screen to auto lock a bump, or even the act of putting it back in my pocket will hit a short-cut on one of the desktops. The next time I "wake" the thing up, I find a program running.

I can easily imagine that program being emelfm2 opening to the last directory I was working on, another bump or pocket swipe could select a group of files, and another one or two bumps could very well delete them.

Oh what joy that would bring.