Ozzy Osbourne has revealed that he gave up taking acid in the ’70s after a trip left him chatting to a horse.The rock legend was speaking in a new interview about the making of his former band Black Sabbath‘s fourth album, ‘Vol. 4’, which was in the groups’s chaotic heyday.“We lived together in a house in Los Angeles, rehearsed there, did loads of drugs and made an album: simple,” Osbourne told Classic Rock. “Those were good times.”“At that time in America, people were very fond of lacing your drinks with acid,” Osbourne continued.