The holidays have arrived and with them the cold. Maya and I have the Santa Claus doormat at our feet and it occurs to me that to warm up we could jump on him. Maya is thrilled and has never tried. I show her how to do it by taking a good momentum from the sofa and landing on him with all the weight. Female collaboration is important and in fact we hold each others hands. Maya also tries to jump on him. She is amazed at how much momentum in the air I can take and so I decide to show her the jumps on his head too. Now we have warmed up…