Closed for deconstruction

Arthur realised that the house was surrounded – how could he escape? Then he remembered the system of underground passages beneath his house, so he proceeded downstairs at once. But the way was barred by a sign (sic) saying "Passages closed for deconstruction – deferrals possible indefinitely, with the possibility of infinite regress. Please take diversion via vicious circle, as indicated." "Damn," he thought, unable to exploit the ambiguity.

    moose + moose = more mooses

    moose + hat = less hat

    moose + less = left-handed

    left + hand = more

"I am not a language. I am a free yak."

            Discuss.