John Lennon later expressed a lot of remorse about the way he treated his fellow member of The Beatles.John Lennon had numerous fallings out with his pals in The Beatles over the years. It's no secret he had arguments with Paul McCartney while working with him. He even once said he wanted to "beat up" his fellow guitarist George Harrison after he made some brutal comments about his wife, Yoko Ono. But it was The Beatles' first drummer, Pete Best, who Lennon confessed he had become "sick" of over the two years they worked together. The Beatles hired Best to...