When we found Mister O'Malley [Mister/Mister O for short] at the local humane society, we saw that he was found out on the street. The people there had named him Babyface [like Babyface Nelson, the gangster from the 30's], and when we brought Mister home, we realized he's like an alley cat, always making trouble. One of my all-time favorite movies from my childhood is The Aristocats, and I remembered a lyric from one of the songs, 'Thomas O'Malley, O'Malley the alley cat,' and thought it suited Mister perfectly because my mother wanted an Irish name as well. From then on he was Mister O'Malley, the alley cat.