That's right.
You are not responsible to provide regular work for them, but if they turn it down there's nothing you can do about it.
That's why it's a liked contract for people who have family commitments.
This sort of contract is for when it suits you and when it suits them.
This sort of contract would be ideal for me at the moment as far as i can see, but speaking to a bloke at ACAS he wasn't very helpful and just confused things.
IR said if i paid no more than £90 per week, the person didn't have a 2nd job, i can't remember the 3rd question now, but if you answered all question "NO" then i wouldn't have to registar as an employer.
IR said all i had to do was pay them there money, keep a record of it for the tax return and that was it.