Apple Mac Book Pro - You've Got Power But is it Safe?

With the MacBook a test was run to check the MagSafe powers cable the results were affirmative. The first time the cable was tugged in to see check the results, surprisingly the cable detached easily on its own; Secondly the cable was pulled completely and the results were same again. So whether one pulls or tugs the wire, or trips on the power cord, the MacBook will disconnect its power cable on its own to save itself.