Re: is this unethical??
 

It is a bad feeling to get this done to you. It is a good lesson learned.
I would say in a game that revolves around no one knowing your hand. You should expect if someone has money involved in a pot they would lying about the true nature of there holding.

Re: is this unethical??
 

Just off the top of my head, not sure that this holds up but here it goes..

Next time a guy offers to show you his hand, rebuttal with great I'll pay you.... Toss $5 in his direction (before you much of course) If he takes the money it is a binding contract (well sort of) if he does take the money maybe that tells you something...

Re: is this unethical??
 

I don't think it was unethical for him to lie. it sucks but it's not unethical. some might say it's unethical for you to show him your cards but i disagree with that as well.

who knows maybe he was telling the truth and saved you money. the river may have brought a spade!

michael