Despite the signs not to take photos at the border crossing!.. We are now leaving China and entering Mongolia.

This is supposed to be the easier of the borders we will encounter but not too many smiles from the border guards. The police in rural China have been a lot friendlier than their Beijing counterparts, taking photos and waving, but obviously the border is more serious. Anyway, Matt and I have already been given stern warnings from our respective wives to smile and remain patient at all border crossings, encounters with officialdom and in fact any other potentially stressful situation!  Not sure why they are worried.