Probably, but I don't remember an instance of this.. I do remember once, while playing a live cash game in the States: I was playing $2-5 NLHE and was all-in by the turn of a $1000 or so pot. The river gave the other player a flush and when I saw it, I threw my hand down on the table, face up, out of frustration and may have uttered a bad word..
Anyway, my reaction seemed to convince the dealer that I had lost the hand and he started pushing the chips to the other player. Then, I noticed something: I actually had a full house! I shouted at the dealer: "Wait a minute!! I have a full house!!!" Thankfully, he heard me in time and I got my money. Just some friendly advice: always protect your cards and never give them back to the dealer unless you are absolutely 100% sure what you are handing over to them, especially when you are playing for thousands of dollars...