I do a bit of work with Daniel Kitson and he can't stand him or his act. This is the Wiki entry about it.
He did appear in an episode of That Peter Kay Thing, The Arena, and as the recurring character Spencer in Peter Kay's Phoenix Nights, a move that Peter Kay said "of all the great things he's done, this is what he's least proud of, the bastard." on the show's DVD commentary. He then said, "the bastard" each time Kitson appeared. The rift is such that when Phoenix Nights out-takes were screened in April 2006, Kitson's face was pixellated out in some scenes. Kitson himself has been quite outspoken in his dislike of Kay and his experiences on Phoenix Nights, calling Kay "comedically lazy and overrated", and an "obnoxious bully of a man". According to Chortle, it is a show Kitson considers "lazy and racist". He has vowed to eschew future television projects of this nature, and any future work with Kay