We are hiring a live-out nanny to work 4 days per week (3 11-hour days and 1 8-hour day). We intend to include in her contract that we require 4 babysits per month, 1 of which may be on a weekend. Are babysits generally included in the salary or paid in addition to the salary? If in addition, at what rate are they usually paid...same as nanny rate or more? (Note that we are paying a full-time London wsalary because we appreciate that although the job is only 4 days, it is fairly long hours)