Regarding smug bulls with fat pockets who believe the market only have one direction - I actually warned someone I know who was asking for advice about going all in with a lump sum a month back.
I told him that I won't attempt to predict the market, but that statistically, September is the weakest month of the year and that personally, I would at least wait until the end of September. Also, consider that few people seem to disagree that stocks are highly priced right now by most historical measures.
He didn't listen to that and was cheered on by a few other guys who belong to the zero-risk long only crowd who have less than 10 years of market experience. So, he pretty much bought the top.