But these were different, unreconstructed days days when Robert Plant's voice could be described in a Rolling Stone review, for instance, as "imitation spade".
Once, in a Los Angeles bar, a woman looked at him and, apparently recognising him, smiled; he went over and punched her in the face.
And in 1977 he, Cole, Grant and a former London gangster called John Bindon were arrested in San Francisco after a security man was beaten unconscious and left in a pool of blood.
Instead of having the band's shows promoted by local businessmen in each town, Grant promoted Led Zeppelin himself, simply hiring the venues and then giving the people who once would have taken the lion's share of the profit as little as 10 per cent.
So far so good (in 1996, the Music Managers Forum award for outstanding achievement in management was renamed the Peter Grant Award in his honour), but his methods were often questionable.
In his unauthorised biography Hammer of the Gods, Stephen Davis explains how one could catch fish out of the window of Cole's room.
He then quotes Cole as saying: "These birds were coming up to my suite wanting to fuck, and me and Bonzo [the drummer, John Bonham] were quite serious about catching these fish." Cole then describes the "victim": "She might have been hit by the shark a few times for disobeying orders, but she didn't get hurt." Let's hope she saw it the same way.Zep's later years involved increasingly hard drugs Page and Grant particularly with cocaine, and Bonham adding them to his formidable alcohol consumption and Plant says the exuberance of the early tours was lost.Bonham's death, choking on vomit after an alcohol binge, brought the band to a squalid halt in 1980. Now Plant, Page and John Paul Jones are to wheel the Zeppelin out again.A m legal action ensued, and the night lives in Led Zep legend as "The Oakland Incident".The American promoter Bill Graham later described Grant's security men as "just waiting to kill".Record shops selling Zeppelin bootlegs could also expect his own brand of personal attention.