Their is lots of info you can google about lenny dykstra (self alledged) financial guru.
This blog has a lot of
good stuff about it. Basically he got tons of press for running a martingale style options newsletter and was celebrated as a genuis. He paid 17 million for a house near the top of the market (with no money down) and then he started an athletes only magazine and didn't pay anyone who worked for him, so you could see how those things might end poorly
This interview starts strong with lenny mocking his mortgage brokers stutter so you'll hate him quickly even if you don't know any of the backstory