The public is also said to always enter into the bull markets at the wrong time. When the television financial news, syndicated newspapers, and radio carry stories of dangerously low oil supplies, a new cancer treatment drug, or the devastation of the nation's wheat crop, the infrequent speculator enters in what W. D. Gann calls the grand rush, causing the final runaway move before the collapse or the final sell-off before the rally.
From CMT Level II book
linked idea to VIX