I know the title of this post seems cheeky, but I'm actually serious: if you lost money on Crocs (NASDAQ: CROX), you should thank the aggressive short sellers who may have helped you avoid losing a lot more money.

Nearly two years, Mad Money host Jim Cramer called the short sellers in Crocs "way too aggressive." While those shorts got burned in the short-run, the longer-term decline in the company's fundamentals has proven they were right. Renowned short seller Manuel Asensio was a vocal critic of the company, raising questions about its valuation and prospects back when it was the hottest company on Wall Street.

With a short interest of over 38% when it was a high-flier, it seems likely that short selling kept a lid on the company's run-up.

And who did that hurt? The insiders who were dumping shares like they were going out of style the way that Crocs subsequently have! The aggressive short selling capped the transfer of wealth from small investors to insider in the low hundred millions. Had the stock been allowed to soar over $100, the damage might have been much worse.

So if you lost a few thousand on Crocs, go hug a short seller! They saved you from yourself.