Home window glass is not nearly as strong as tempered auto glass and as such is much more vulnerable to a flying chair. The flying chair can be deployed from a safe distance. The flying chair will take a bunch of the dangerous glass out with it so you don't have to worry so much about cutting yourself as you follow the chair. Office windows are often tempered glass and won't be vulnerable to the flying chair but may be vulnerable to the centerpunch. Haven't tried it tho (I think the boss would be mad) <img src="images/graemlins/wink.gif" alt="" />