Hot and cold slots. When I was a beginner and going out to play in land base casinos, there was once who whisper to me that there are slots that are due to fall their gambling because it has been played by a lot of gamblers already.
But that is a myth obviously, as there are no hot or cold machine, still base on RNG and luck and so even if you played those machines are are supposedly hot, it's not a guarantee that the you are going to hit the jackpot.
And to add to that, the placement of the machine itself. There is this myth that they hide deep in the casinos that machines that are bound to give jackpot because they don't want it to be hit by the gamblers.
And then put machines in front, which are barely being played so that it will just eat up players money and then giving them a lot of near misses or near hit so that they will continue to play in thinking that they have control and could hit the jackpot anytime soon.