How do you hold on to your instruments?

Have you ever returned from vacation, a weekend, or even lunch only to find your test setup decimated? What have you done (or your colleagues done) to keep test setups intact? Have you locked equipment in a closet? Have you hid a meter in your desk (and locked it)? One oscilloscope has a knockout for a Kensington lock. Is that a good idea? Send us your comments.