Dad has bought another power tool and there is nowhere left to plug it in. Drag an extension lead from each appliance to its matching power point until every pair is plugged in and every square of the shed floor has a lead running over it. Leads never cross, but drawing over one pulls it out. An endless ladder of bigger sheds, three skips, and a budget of lead that punishes scribbling. Dad is watching with a cup of tea and has opinions.