A?riotous, toilet-humor tale of two children's speculation while in line for the bathroom ? Who's in the loo? There's a very long queue. Is it an elephant having a poo? ? If one's house has many occupants, then this witty rhyme from the irreverent and observant pen of Jeanne Willis will resonate profoundly. Adrian Reynolds's exuberant illustrations highlight the fun.A?riotous, toilet-humor tale of two children's speculation while in line for the bathroom ? Who's in the loo? There's a very long queue. Is it an elephant having a poo? ? If one's house has many occupants, then this witty rhyme from the irreverent and observant pen of Jeanne Willis will resonate profoundly. Adrian Reynolds's exuberant illustrations highlight the fun.