Peter's family had regularly employed Sam over the past five years for servicing and repair work for the family cars. When Peter took the car to the garage on 15 April he entered an office on the wall of which was displayed a small notice stating: "Customers are kindly invited to note that all vehicles are accepted only subject to the conditions on our receipt forms."

On the receipt form was Peter's family name, a description of the car and the work carried out, a statement of the amount owing and an acknowledgement of payment of that amount. The following words were also printed at the bottom of the receipt: "We regret that we cannot accept any responsibility for damage or loss caused to customers' vehicles by fire, vandalism or otherwise howsoever occurring."

That evening thieves entered the garage and stole the sound system (valued at $500) that Peter had installed in the car. The thieves were able to enter the garage because Sam forgot to lock-up when he left for the night. On 16 April, having completed the repairs, Sam used the car to drive to his girlfriend's house. While the car was parked outside the house, someone (who has not been identified) crashed into the car causing $7,500 worth of damage.

Advise Sam if he has any liability in these circumstances