SingoaDo yourself a favor and realy listen to the first line of this song that was written about shorting stocks. All you need to know is in the first line. As difficult as it may be for your level of intelligence to really comprehend the first 8 words, pay attention, rewind and replay as necessary.
https://m.youtube.com/watch?v=aelpqWEBHR4
and besides, its a really good song.