You can only hold your hand out to offer help so many times before something with rabies goes in for a bite. Ive had to deal with many so called "self appointed experts" before in my full time job. Having to endure someone from IBM, charging $1700 a day, coming in to provide vendor support for IBM websphere and having to show them how to do things. They are everywhere
http://www.googleisyourfriend.net/