I have known a few problem gamblers — they come into work and say “I put $50 on Santa’s Little Helper and won $400!” and everyone congratulates them, which feels great, which is part of why gambling is addictive. But they don’t tell you that they immediately put that $400 on the next race and lost, and that it was the seventh losing bet they made that day. (I try to avoid congratulating people who’ve had gambling wins for this reason — you never know when you’re enabling an addict.)