We went to a national fast food restaurant the other day and we ordered our food and I give one of the kids their soda cup to fill up while I finish paying. By the time I get over to the machine, they are waiting for me to see what options they have. Usually not a big deal because I don't have a problem with any one of them but today I guess our choices were quite limited.
Don't forget the sign that says, "It is against the San Diego County health code to refill any cup after drinking from it"
By the way...Enjoy your unlimited free re-fills!