Together, the Luggable Loo and bucket become, in effect, a potty chair for adults and kids alike — a portable toilet that looks as nondescript as a toolbox but serves a more essential human need.

The toilet, now nicknamed ‘Doctor Loo’ appeared in Mrs Possegger’s farm in Lewes, East Sussex, in July. It had been dumped there after a Mumford and Sons concert in Lewes on 21-22 July, but ...