Go. forget. Yourself.
Ask anyone on the Lets Make a Deal forum, its frowned upon, but almost every successful trader does it.
I will clarify what I mean by sharking (I may be misusing the term):
When I say sharking, I mean offering on an individual's item who has little to no experience with trading, and explaining to him or her what my offer is and that it is a great deal for him or her. The great deal part may not be true, but this type of stuff is used in nearly every business practice. Give me a break.