Haha, I am reading up on Mr Buffett's mentor right now!
I'm about a quarter of the way through The Intelligent Investor. It is a great read.
You are not kidding, options and margins can be rough! Thankfully, I only did margins on demo accounts and decided I wanted to work through a different medium.
I enjoyed The Snowball.
I lost some sleep to margin accounts. If a client's margin account goes negative, the firm is looking for someone to pay!
Have not read that one yet.
Oy, those would be some sleepless nights.