I did one of those "you're approved for a $6000 personal loan" deals, even though it was 26% interest. But it felt good at the time.

A few years back I bought a house ($135,000), new truck ($50,000), engagement ring ($1,400) and a 4-wheeler ($3,500) in 30 days. Luckily it all worked out in the end and my wife and I have a lovely home with some property and can do what we need to do with it.
But it could have ended in disaster...