Here in Australia we're lucky to have such a low covid infection and fatality rate but have been unlucky in the slow vaccine rollout with the major cities locked down for weeks to come. I'm lucky I live near the beach and that I found a 2 dollar coin in that area the other day so I guess things aren't too bad.
Other cases I can think of :
The time I found Batman adventures 12 (first Harley) for a buck at a thrift store one Thursday. I'm usually there on Friday so I was very lucky .
The time I changed my travel plans in Japan 2016 and caught the first bullet train to Osaka so I could do this Universal studios ride that was closing the next day. While in line I got talking to a Japanese guy in biohazard cosplay, we did the ride together, exchanged emails and have been friends ever since!
Especially lucky for a quiet guy like me who has trouble making friends.
Not so lucky. The time I tried to use a fifty fresh from an ATM at a charity store that turned out to be counterfeit and was treated like a scammer.
And your stories?