Arthur you are right; it is a simple check, but the lifting magnet (that is its correct name and not CSS) generally does not cause the car to stall. Another simple check is to turn the A/C off, thats of course if it has A/C, does it have A/C?
At this point, you and I are appearing as jerks, which is ok as I readily agree I do tend to be a bit of jerk
...all the best
Leonard