I have no shame in asking to see your cards.
If I am sat at your table, and you are constantly raising, or overbetting flops to take down a hand, I am wondering what are you doing it with. If someone calls you down and you muck with lots of good cards on board, I am going to ask to see the cards.. Its information.. It is also a way of curtailing the serial raiser if he has just had to show a load of rubbish.. If there isn"t an obvious serial raiser, I will not be asking to see cards.
None of my reason for asking to see is anything to do with collusion.
In a similar situation, if I have taken a risk to call down a serial raiser, and I call after the river, too many times, serial raiser wants to see my cards first. He aint gonna see them first. If it is just a std player, and I think I am good, I will show first and let him muck.
It all depends how you are playing against me. I MAY actually be just taking one for the table if I have chips...
Carl.