[nadams]

> Is this workable?

I know in the Windows Mobile/Blackberry days if you typed in the incorrect password so many times it would reset the device.

However, with many Android devices now a days have the ability to have a "guest mode" - that is activated using a different unlock code. This mode can be limited to not even be able to make/receive calls. Arguably most people won't know what this "mode" is and if they are in it.