I went to the casino with my spouse, lo and behold I won a large amount of money.
That's great!  Did you win it on a table game or at a machine?
I won it at the machine. I am not  gambler so I guess it was beginner's luck.
Did you stop playing after that or did you try to win more?
I stopped playing, I was afraid of losing it all.
I understand.  I play every now and again and I usually quit while I'm ahead.  It always ends up that I'm waiting on my friends to lose all their money so we can go home!
That would be sad to win a lot of money, then lose it all.
Yeah - the first time I went with friends, I won 100 bucks but ended up giving it back to the casino.  I told myself that if I won money like that again, I'd just stop and take the money home.  It works out well!