柴薪

柴 = 木 + 此 : Charlie Chaplin (ch) found new boots (此) under the Christmas tree (木) in the airplane's kitchen (ai2) and is eager to try them out. He gets some firewood (柴), makes a fire and is amazed that with the boots he is able to walk over the fire. He is so amazed that he spontaneously walks all over the Christmas tree (like indicated in the character 柴).

薪 = 艹 + 新 : Marie Curie (xi) received her salary (薪) in front of the encampment ((e)n1) which consists of a set of completely new (新) sheets of artificial lawn (艹). Unfortunately they catch fire and prove to be the ideal fuel (薪) for a quickly burning fire: the artificial lawn is burning down within seconds.