a few years ago I was having a play with microsoft ads and whilst the loan ads were live worldwide too, the next thing it was showing a figure of just over £10,000 on my account, I just sat there and froze with fright thinking I had just maxed out my credit card in a matter of minutes
it turned out I was looking at the figure it would cost per month if I ran the ads at the cost per click I had set.........phew