What is the most serendipitous thing to have happened to you?

Twice in my life I found bags of money. The 1st time I had to be maybe 5. I brought my mom a $100 bill. And she was like where did you get this? I told her I found it. And I said there's more over there. She said go get It! So I went back picked up the bag and gave it to her there was $1600 in it. The 2nd time I was an adult and I found $900 in a parking lot