One day I went to my local Indian casino and the bank guys were working on the ATM. I only had $40 so I plopped it down on my hockey number on roulette and walked to the other machines in the slot area. When I came back I had $1400 waiting for me as my number hit. Well that was the best night with the least invested ever. After 6 more hours at that table I cashed out $15,000 and figured that I should go hammer the higher limit slots. An hour later, I was in my car with nothing to show for it. I swear those machines knew it was casino money being fed into them and they got it all back. So, best night ever was also the worst night ever.