There was no charge of attempted murder. And by the sounds of things he wasn't there to steal. Reading the story, it looks as though the bloke (they were neighbours) went around to have a row with the boxer dude.
He claims that he can't remember anything, if he'd been partying til the early hours then thats entirely feasible. I'd put this down to a drunken act of stupidity than an attempt to steal or murder anyone.
If anything the sentence seems a little harsh, if held up against other ridiculously low sentences given to 'proper' criminals, that we are always reading about. And looking at the pictures of the burglar, I don't think he's got it in him to stick a knife in anyone, couldn't knock the skin off of rice pudding!
He probably took it for his own protection, as he'd been in rows with the boxer before and was probably too scared to get into a proper fight with the hard looking b*****d.
Here's a good bit:
"Mr Corti said he called police when he found McCalium banging on the front door of his house at about 6.30am.
Two hours later, he said, he came downstairs and saw bar worker McCalium in his hallway."
Perhaps the story should read: "Police, useless at protecting the elderly from rowdy louts"