i'm not an expert but i'd say definitely get him done, because some adult male rabbits need asbos. i am thinking of a certain 'spice', who lived in the mid-nineteen seventies, and 'peter', my colleague's first bun, who had her terrified with his territorial attacks!
but i had to call in to say, my daughter's father in law is called noel. so every time i see this thread, it makes me look again! he's 77 though, so i think its a bit late.