Paul McCartney has revealed when he faces struggle to finish his songs he usually gets his inspiration in the toilet.
The former Beatle member said in an interview that whenever he faces problem to finish a song he goes into the toilet, as "toilets were good" and allow a person to think in a free way, the Mirror reported.
The 72-year-old singer added that he started writing songs as the way it came to his mind regardless of how rubbish they were, but also felt shy and embarrassed about playing a new song to someone till the time it wasn't finished.
McCartney also talked about his no so favourite sex songs and his US wife Nancy Shevell was left unimpressed by his latest collaboration with rapper Kanye West.