Jubal had been observing with interest the effect of his first drink of liquor on the Man from Mars - saw him become drunk almost at once, saw him sober up even more quickly.  In an attempt to understand what had happened, Jubal urged more brandy on Mike - which he readily accepted since his water brother offered it.  Mike sopped up an extravagant quantity of fine imported liquor before Jubal was willing to concede that it was impossible to get him drunk.