Malapropism of the day

There's a notice at the reception of the local gym in Bournemouth saying, "The spa is closed for repairs. This will take a few days as the work is difficult and odious." When asked why it was odious work, the manager said he was simply repeating what the contractor had told him. He looked bewildered at the possibility that the contractor may have said "onerous" instead. Then again, maybe he said "odorous".