Bret Hart Comments on Drug Use in WWE

In his new book, Hitman: My Real Life In The Cartoon World Of Wrestling, Bret Hart makes the following statement regarding his drug use in WWE:

When I was working for my Dad, I didn't have to poison my body, I didn't need it. But when I got to the WWF (World Wrestling Federation), everyone was doing it. And Dynamite and Davey Boy were making three to four times the money I was. If I didn't take them, I wouldn't have a career.