I stand by the old adage that its very bad poker etiquette to ask to see a losing hand.
If the TD thinks there is collusion going on then they should be the only ones with the power to turn over a losing hand.
I think this is the problem.
Sportmanship doesn't really work in poker.
It only just about works in footie, but remember when Kan scored in the FA Cup v Sheffield... or all those times there's an injury and a team just plays on...
Sportsmanship really gets in the way sometimes and everyone has different views on what is and what isn't sportsmanlike. It's just way too subjective.
This is why I think the dealer should be in control and just turn over hands that ought to be revealed. No arguments.