Father in-law and his buffalo

After the annual fishing activities on the 1st Jan, my father in-law suddenly asked me to take some photos of him with his buffalo. As a 'good' son in-law, I happily obliged. :D I get the chance to do some practice shots as my Tamron 70-200 seems to have some problems in focusing.

Here's some info about him. He's a retired headmaster, and spends most of his free time working on his land.