I broke and decided to pay 3.5 for a small bottle of water. I was dehydrated.  The 'employee' took my ten and handed me my water and a 5 dollar bill and said stupidly, \"that's ok right??' I was in utter shock, I never purchased at venues and experienced that so i just said yea whatever. When my husband drank some of my water and did not close the cap properly, it emptied into my bag. This time I went to the person at the concession stand.  I gave her a $10.00 bill and she too gave me the wrong change! This time I spoke up. I said, what the proper change should be and she acted dumfounded but gave me my remaining change. I guess they hope naive people wont count their change but this time I was on point.