I am so often embarrassed for my gender. We really are a bunch of muscleheads when it comes to the fairer sex.
If you are trying to get with somebody, which presumably this dude was trying to do, the right answer to her question about your occupation is always a nonchalant, "A little of this and a little of that".
Mystery. Intrigue. The key to all hook-ups.
No charge for the advice. 😉