While you may not think of comedian John Oliver as a credible source of financial planning advice, in fact you need to do yourself a favor and watch the most recent episode of his show Last Week Tonight. In simple and stark (and yes hilarious) language, Oliver explains the pitfalls and problems with financial advisors, investment service fees and the drubbing you may take as you try to put away money for your retirement. So be prepared to laugh and learn, and Watch This: