Do you allow yourself to bet on ridiculous things?
Like in sports betting, do you sometimes just bet on an option that has very low chances of actually happening but seems fun to bet on at the time? Some people might do it for fun but what would be amazing is if it actually happened and you won.
Even if it was just for fun, it wouldn't really matter. I only bet on the team or person who is likely to win based on my analysis. Unless they are my favorite teams.
In the case of your friend, it was not that he was too lucky but also the person he bet on. Some cases like this seem to happen unpredictably. Sometimes we can ask the question, why? In gambling, winning is uncertain. This will imply that betting should not be taken seriously because sometimes betting on nonsense bets wins.