Fleetwood Mac is a 70s band. They needed to be wasted on stage for that additional concert energy. Chris said herself that she played better drinking a bottle of champagne every night and doing blow off bottle caps through the show. Need I say more? I was listening to a live version of Future Games from 1972 the other day. Bob was so wasted explaining to the audience how Future Games was written. They were all sitting around one day getting wasted. He said the song was written way up high in the mountains in his mind. Then Chris laughs. Its rather cute
Here is the clip
https://www.youtube.com/watch?v=ncNc...&start_radio=1