Last Thursday, I did a drawing marathon until my arm ached, not in a sketchbook this time, but at a flipchart. Actually, it was my feet that were killing me by the end of the day, not my arm. It's much easier to stand up at a flipchart, so my bum barely touched a chair all day!
The final child of the day asked for 'My mum, sitting on a bench in the park, with trees, with her four children playing around her.' Thank goodness for home time!