S/L M.W. Pettit's crew that included rear-gunner Doug Penny flew a No. 432 Squadron Halifax with artwork they named "Devastating Dog." The image was based on a Walt Disney character. A sortie to Hamburg was the thirty-third for rear-gunner Doug Penny. On the trip home they began a gradual descent while approaching the English coast. Doug began to relax, poured a cup of coffee from his thermos, and at four thousand feet removed his oxygen mask. Then suddenly in the darkness he glimpsed a movement. A German night-fighter had followed them home. Air gunner Penny and the fighter opened fire at the same instant. The German bullets struck the Halifax tail just four feet from Doug's turret but Penny's fire killed the German pilot and the fighter fell over and dove into the sea.