Unfortunately most gamblers employ the mentality that THEY are the exception and will be the one to bring the house down.
I have a friend of 40 years who is a long time member of "G.A." - Gamblers Anonymous. It's a never-ending fight to overcome that mentality.
Yeah, I’ve seen guys celebrate winning $500 on a scratch-off all the while they have spent $1000 on all the worthless tickets leading up to their win. People are funny.