Image Source: PexelsI had never really considered United Airlines a great short candidate. Airlines are notorious businesses, which is why until recently United Airlines’ stock had a P/E ratio of 7, which is an old school, 1982-type fundamental.Anyway, after blasting triple digits higher in just three months for no particular reason, I decided to give the stock a shot, so I bought puts on it on Thursday.More By This Author:Crypto CramerPost-Nvidia W.A.G.Semiconductor Sunday