Taking pictures of people always is a challenge. Especially when traveling. Because when traveling, you have to respect different cultures and habits. Not everybody likes to be pictured. Some cultures even feel like you are robbing there sole when taking a picture of them. That was especially a challenge when taking pictures of the Paiute-Shoshone Native Americans. It took a half year to gain their trust before starting with the photography.
We have no sympathy for photographers, that stick their camera right into the face of others, no matter if humans or animals, to get a perfect shot. We prefer, when people or animals interact with us on their own free will because they got curious. Thats when we get our best pictures!