"The thing is," the security guard politely said, "we suspect that the machine is faulty, so please wait for a moment." Those who had enough money to gamble here must be some kind of powerful person, so they could not instigate matters directly. Hence, they were very polite and only said that the machine had malfunctioned.
Anyone with half a brain could have understood what the security guards meant by that.
You have won quite a bit. Stop while you still can, or you will be met with fists!
Lucifer as a high IQ technological geek naturally understood the hidden meaning. He smiled and said, "Alright, I'll go somewhere else and take a look then."
Li Yang and the rest followed behind.
They had attracted certain attention from the casino, including the bookmaker. Soon a steward came up and politely said, "Sir, we have some more exciting programs downstairs. Will you perhaps be interested?"
This was their invitation to gamble.