By 1966 the Beatles had become disenchanted with all aspects of touring – including fans offering themselves sexually to the band, the high-pitched screaming, and regular confinement in hotel rooms – and they were frustrated that the quality of their live performances was so at odds with the increasingly sophisticated music they created in the studio. Harrison was the first to tire of Beatlemania, while McCartney had continued to thrive on the adulation. McCartney finally ceded to his bandmates' insistence that the group stop touring towards the end of the 1966 tour. Lennon said that their concerts had become "bloody tribal rites" where crowds came merely to scream. Harrison later likened Beatlemania to the premise of Ken Kesey's novel "One Flew over the Cuckoo's Nest", "where you are sane in the middle of something and they're all crackers". According to Starr, they gave up touring "at the right time", since "Four years of Beatlemania was enough for anyone."