originated after a show the two bands performed earlier in Switzerland. An altercation occurred in an hotel bar in which Butler removed a switch-blade comb from his pocket and opened it. Young thought it was a switchblade knife and believed Butler was pointing it at him. In the Bon Scott biography Highway To Hell: The Life and Times of AC/DC Legend Bon Scott, Clinton Walker writes of the tour: "Sabbath, by 1976, were well past their prime, and AC/DC were all but blowing them right off the stage. Substance abuse in the band was rampant." Graham and Tangye also disclose that during the tour drummer Ward had begun driving from gig to gig in a rented Winnebago due to a fear of flying. Osbourne briefly left following the Technical Ecstasy Tour. Although he would eventually return for the follow-up Never Say Die!, the band temporarily replaced him with former Savoy Brown vocalist Dave Walker. The band wrote a handful of songs with Walker, and performed an early version of what would become "Junior's Eyes" on the BBC programme Look Hear with him. Reception The album received mixed reviews, with Phil Alexander writing in 1998, "While today hardcore Sabs fans defend some of the bold steps taken on Technical Ecstasy, it was a confused offering which still hit Number 13 in the UK but limped into the US charts at 52." In 2001, Guitar World was less kind, calling it perhaps the "least-loved effort of the original lineup" with the band "trying to stretch its sound in several different directions, none of them exceptionally successful." It deemed "Rock 'N' Roll Doctor" "a bad Kiss imitation" while eschewing "It's Alright" as "a sub-par Paul McCartney-style pop ballad." In 2013 Mojo magazine opined, "Technical Ecstasy is the sound of Sabbath trying to make a grown-up, radio-friendly rock record and, in some parts, it works ... Mostly, however, it doesn't with tracks like 'Back Street Kids', 'Rock 'N' Roll Doctor' and 'Dirty Women' resorting to clichéd and ill-fitting rock moves." Greg Prato of AllMusic agrees "it was not on par with Sabbath's exceptional first five releases", but praises "Dirty Women", the "funky" "All Moving Parts (Stand Still)" and the "raging opener" "Back Street Kids". In 1992, Iommi admitted to Guitar World: "Black Sabbath fans generally don't like much of Technical Ecstasy. It was really a no-win situation for us. If we had stayed the