I think I've said before on here, when I was off on maternity leave with my son, I got into a habit of buying a scratchcard every day when I took him for a walk to get him to sleep. I think the most I won was £20. I had lots of little £2 type wins but always spent the winnings buying more cards and so lost it all
Its a good job I was only off for 6 months or I could have developed a serious addiction
I don't think I've bought one since then though....