Well I'm sorry but I've heard hundreds of such accounts and none of them constitute decent evidence do they? This is not to say many people aren't sincere, it's just that sincere belief by one person provides zero, zilch, nil grounds for belief by another. Only evidence can do that. Talk of professional dowsers making money at it ain't evidence of anything except (perhaps) the gullibility of some Aussie farmers).
Incidentally, your talk of fuckwittery on TMA is a bally cheek. You're the one saying dowsing works.