"..." without a word, Obi-Wan uncaps the flask in his pocket and offers it to Luke first and foremost, he'll take a drink second. If he only had so long, something had to have happened, and for him not to teach Luke from birth is...

Worrying.

"I can say your father didn't have an opinion in the matter. He hates Tatooine with every fiber of his being, as much as a Jedi can hate anything."