@Michael ********
Easily done, I went to Mae sot to do border bounce in car, went to no 2 bridge (wrong bridge) as it turns out, no1 is bounce crossing,. Anyway in the confusion at no2 bridge I showed my passport to security and put it back in my right trouser pocket, drove onto the border site parked car and got out to see where to go to get stamp, it’s a massive place with hundreds of trucks vans etc, eventually finds an immigration officer who informs us to go to no1 bridge, I go to show passport and it’s not in my pocket ! I can’t tell you how I felt,…retrace my steps, not easy when you’ve been wandering around a strange place, goes back to car opens door “to the last chance saloon”and passports on floor of car down the side of the seat !,.! pheewooo! Loosing passports,it’s a horrible feeling when it happens, it must have happened to thousands of people to,.