"Court appearances
Dee had several court appearances and in 1974 served 28 days in Pentonville Prison for non-payment of rates on his former Chelsea home. Every time he left his cell the prisoners on his wing shouted, "It's Siiiiiimon Dee!" He was so shocked by prison that he swore he would never get into debt again. On another occasion he was jailed for vandalising a lavatory seat with Petula Clark's face painted on it, which he thought was disrespectful to her. The magistrate who sentenced him was Bill Cotton."
Wikipedia