No offense GPK but it is your responsibility to make sure you have all your tickets and voucher before you leave the window or self betting machine. It isnt the responsibility of the person behind you to keep track of your money. In fact, I can't even remember who the person was in front of me when I make a bet. I am too busy reviewing my selections. Now if the man knew it was your $50 voucher, then yes he should have done the right thing and give it back to you. But not everyone does the right thing.