My sister has recently employed a receptionist to cover maternity leave. The lady started and my sis sent an email out to all clients introducing the new member of staff. One of her clients rang sis up and gave this lady quite a bad report basically saying that this lady temped for her agency for a while and she appears to be a compulsive liar. The lady's brother was apparently killed in the tsunami as well as his new wife (they were on honeymoon), her grown up dd was in a road accident along with her dh etc and the SIL was in a coma. Well sis decided to just carry on with the employment because she actually liked the lady and was excellent workwise. Well she's been there for a week now and hasnt returned after bank holiday due to an appendectomy! An enquiry of the local hospitals has confirmed that she hasnt been there! How would you broach this?