one o'clock
` And then , by Jove , he comes down on you like a thousand of bricks , ' Walker agreed heartily . He remembered observations which Alec on more than one occasion had made to recall him to a sense of his great insignificance . ` It 's not for nothing the natives call him _ Thunder and Lightning _ . ' ` But when things look black , his spirits go up like one o'clock , ' proceeded the doctor . ` And the worse they are the more cheerful he is . ' ` I know . When you 're starving with hunger , dead tired and soaked to the skin , and wish you could just lie down and die , MacKenzie simply bubbles over with good humour .