Very plausible, can totally see that... other than it would take someone with a lobotomy to be shorting the Penicillin of the 21st Century as a daily trading strategy. Definitely don't hold those positions overnight...

How a Short Seller's Account Went to Negative $106K
https://www.investopedia.com/articles/investi...e-106k.asp

Quote:

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Joe Campbell, a 32-year-old small-business owner from Gilbert, Ariz., liked to trade the stock market in his spare time, but recently got caught in a disastrous trade he will never forget. The story of his devastating short position in KaloBios Pharmaceuticals Inc. (KBIO) spread like wildfire in the financial press, after he described on a crowdfunding website how his $37,000 account balance quickly turned to negative $106,000 on the heels of unexpected news.

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Or do hold them overnight, guess I really don't care to be honest