One aspect of market behavior never changes: When times are very good and have been for awhile excessive speculation is a certainty.We saw that in stocks leading up to 2000 housing leading up to 2006 and commodities leading up to 2007. Those are just a few examples but one extreme generally leads to another: When speculation gets out of hand and those folks get burned they tend to retreat in a major way.The latest data related to "pink-sheet" stocks bears this out. "Pink sheets" is another name for the over-the-counter market comprising several thousand stocks usually priced under $1 for ...