There's loads of things to worry about if you are a bear such as valuations, China, US yield curve flattening, economic woes in Europe, the recent collapse in freight rates etc. Here is an apt summary of these views from the pro's:
Things to Worry About as a Bear
11 Celebratory Cocktails To Enjoy While Ushering In The New Year
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Give that midnight cocktail a bit of an upgrade this time around.
27 minutes ago