Back in the day, I had a serious addiction to video poker machines (live machines - not the online kind - the ones made by a company called Noraut based in Omagh). I always went to this place called the 147 Club in Queen Street, Belfast that was 1. right beside a police station and 2. directly opposite the US embassy building.
Anyhow, for some strange reason, I had a habit of often hitting a royal flush on my birthday. Wouldn't hit one all year, then on my birthday, bang - in it comes. The first time it happened, I thought "ah it's just a mad coincidence". By the time I hit for the third birthday in a row I was like "erm...OK....this is getting a tad strange now". It got to the point where I hated the idea of having my birthday fall on a Sunday because they weren't open on Sundays and I would have to go somewhere else lol. Eventually, the "birthday streak" ended at 6; yep my run ended at the so called "Lucky 7(th) attempt". And sure enough, since the streak ended, I have not hit a royal flush on my birthday ever since.
I did eventually beat my addiction to the live video poker machines (about 5 years ago). Not long after, the 147 club closed down. As a sidenote, the police station is also no longer in use and the US Embassy moved to another location in Belfast.
Then I discovered the online casinos and, as time passed, went from loving video pokers and hating slots to loving slots and hating video pokers. Recently, I've suddenly picked up this weird habit of hitting the 3 scatters to get the free spins on whatever slot it is I am playing and then doing a quick sign of the cross before I click on "start free spins". And I'm not even a religious person (I am a Catholic, but I haven't been in a church for a long, long time).
Maybe I'm just weird. But I definitely know that I'm superstitious. Probably got it from watching those Miller Lite TV ads where the tagline is "It's only weird if it doesn't work". And sometimes, it does work - handsomely

But most of the time, it amounts to a crock of BS lol