It's my favorite line from a David Carradine movie made back in 1978 called Circle of Iron. In it, Cord, a martial artist, aspires to fight and defeat the legendary Zetan.
I don't remember where it is in the movie, but someone along his travels asks Cord what his business is. “My goal is Zetan” is his succinct response.
This would make a wonderful line to use in a wide variety of situations: any restaurant(particularly fast food), any government office--especially the Human Services--, the Bank. Might be interesting to go a whole day walking in places and stating your case. “May I help you?” “My goal is Zetan!”
You'd get a fairly wide range of responses, from hostility to bewilderment. Me, I'd probably start laughing, for lack of any other comeback.