互信

互 = 一 + 彑 : Helga Horse (hu) is freezing in the space station's bathroom (Ø4). She rubs her two front hooves mutually (互) against each other to warm up a little. Even her wet snout (彑) is frozen: she cannot play the flute (一) anymore.

信 = 亻 + 言 : Marie Curie and Rosa Luxemburg are reading a letter of Karl Marx to the public in the encampment's bathroom. To make the message really come across to the people they use a megaphone.