I've never, ever, used a torque wrench on a drain plug. Motorcycle, car, lawn mower, never.
People with no mechanical aptitude think they are doing "the right thing" when using a torque wrench for everything. Problem is, sometimes these people pick up on the wrong spec, the threads are lubed when they shouldn't be, or the threads in the equipment have deteriorated. Before you know it, stripped threads, or something tight or loose.
Drain plugs are easy: tighten until bolt contact, then tighten a little more, while you "feel" the washer crush down just a little. Done.
Of course, some people have hands like spatulas, basically, no feel. If you are like this, find a good mechanic, and don't F*** anything up.