Harvey Weinstein, from anonymous
The process and speed of Weinstein's demise is an excellent example of the "critical angle of repose." Weinstein's angle of repose was very steep–any number of his widely-known misdeeds could have triggered an avalanche–but his personality, relationships and business acumen resulted in a morphology that had a very steep angle.
One can find numerous analogies in markets and individual companies–John Gutfreund is one example that comes to mind. An astute investor might claim to be able to exit a position/relationship before the angle of repose is reached, but it is nearly impossible to discern luck from brains in this regard.