When I went on my cruise, I was curious about the casino--I had never been in one. The only thing I knew was what I'd seen in movies--one armed bandits and roulette wheels. So I get in the ship's casino and all the slots are electronic like an arcade game and you have to buy an EBT card to play it. I tried asking a casino attendant how to use the machine, because it has a bunch of buttons and I was pretty confused. He was a young kid, gave me a dirty look, spent about 25 very impatient seconds showing me how to get started and then he bolted.
So I played along for awhile; put in $20 to start. I thought I was getting the hang of it but had no idea if I was winning or losing, so I hit this button to see my balance and instead all of these frickin tokens started pouring out of the bottom of the machine and I had nothing to put them in and they were spilling onto the floor and they kept on coming...
Someone playing near me took pity and brought me a plastic container and pointed to where I was supposed to take them to cash them in. I won $80.
It would have been a lot more fun if I'd KNOWN I was winning $80, though.
Moral of the story: If you've never been to a casino before, have a friend take you to one BEFORE going on the ship.