Scott,
I agree that these units should not be used as a final testing device, particularly where life-safety is an issue. However, I , like many, sometimes yield to haste or habit. Hindsight is 20-20, and in the future, hopefully, we'll remember this incident. By the way, the cable in question was at approxinately shin-level, and my brother was kneeling in moist grass at the time. If the cable was already the proper length, he would have been stripping it instead of cutting it, and I believe he would have been killed.