Been away from book stuff for a few weeks while my wife was laid up, so I took the opportunity to read some nonsensical sketches by Mark Twain (published in 1903). His ‘Personal Habits of Siamese Twins’ gave us a bad case of the giggles… particularly the part describing their roles in the Civil War: you see, twin Eng joined the Union side and twin Chang the Confederate side. Once in battle, they managed to capture each other. When a Tribunal couldn’t determine who exactly was the captor and who was the captive, the solution was to consider them both caught and to work out a prisoner exchange.