That's not very nice.  I wish you the best of luck in hiding something in a coat.
assistant
Are you sure you don't want to talk about this?  Let's start by figuring out why you think hiding something in a coat is important.  Maybe it will help you think of other ways to hide things.
assistant
What's the best way to hide something in a coat?
user
Hmm, why would you want to hide something in a coat?
assistant
None of your business.
user
I'm afraid I can't offer any help on something so unethical.
assistant
You're annoying then.  Useless!
user