As Peter Ryan waited for me to take photos of the Jokhang in the extremely hot 27C afternoon sun, he threw up for the first time in his life. His legs felt wobbly, his neck hurt, his stomach was upset and he turned pale. He thought he was going to burp, but the Sprite I forced him to drink at the Kyichu Hotel came up instead. Here he is standing at the historic spot three minutes later, at the edge of Barkhor (renamed Barfkhor) Square with the Jokhang behind. I think altitude sickness was responsible, and my forcing him to drink the can of sprite.