That was some maturity you displayed there mate, very a few gamblers will wanna reason and act in the respectful manner you did for peace to reign. And that's why it's so important to be attentive to check if by a mistake or purposefully another gambler have left a credit in any of the alot machine wanna make use of, some might be a deliberate act to take advantage of our mistake.
I bet she probably dis that on purpose if not why would she walk on to you immediately you had put some money in it. For if it was something she didn't do on purpose she would have accepted your kind gesture of appealing to withdraw and give it to her. Damn I hate such crooked humans.
Maturity and being honest. Maybe not all will do that because it was already money and most of us motive to gamble is for the money. I am also like that. I mean I also play for the profit but I can't stand to take someone else money. I'd be more happy if I can find the real owner of this fund and return to it to them.
I think it's rare if someone will purposely left their money. Why they are doing that? To help the next gambler to have a head start? They are too kind but I hope it will fall on the right hands or to those who have been losing continuously. That should be a big help to them already, much especially if the amount is also slightly higher.