i have a pair of DC 20-10s (1995 model) that have been dropped, kicked, thrown in anger, run over by a tug, backed over by my car (and jeep, and truck...), spit on, worn by strippers in a tight squeeze (you know the story...), sworn and cussed at...
but they've NEVER, EVER failed me.
by far the most reliable piece of equipment i have, besides my liver...