I'd rather sort out the details of the favour first, or at least be clear that when you do decide on what you want, I'm allowed to say no and discuss the terms.
[Look, he's learning!]
Other options:
no subject
I'd rather sort out the details of the favour first, or at least be clear that when you do decide on what you want, I'm allowed to say no and discuss the terms.
[Look, he's learning!]