Is it legal for casinos to claim a charitable deduction from small-change TITOs for money that is really other people's donations?

Do you agree with me that a lot of people are playing machines they don't understand?

What do you do with your TITOs for less than a dollar?

How do I reserve my machine if I need to go to the bathroom?

I am a little concerned after reading an article about thermal-paper receipts that contain dangerously high levels of Bisphenol-S and I'm wondering if there are similar risks for slot and video poker players. Do you know if TITO tickets are printed using the same chemicals?  

How much money is donated to various charities from the leftover change on TITOs?

Can the casinos regularly change the payout percentages on slots?

Why do people walk around the casino noting progressive jackpots?

What are the largest online, slot, and lottery jackpots ever hit?

Can the casinos determine when jackpots are hit?