Murphy seems to know what time of day to expect the kids to return from school. He used to run to the front door when he heard the low rumble of a bus slow down on the road outside. Now that Sian has passed her driving test she drives in and out of school and Gareth and Rhiannon catch a lift with her. Murphy has given up running to the door as the school bus passes by but seems to now be tuned into the sound of Sian's car pulling up on the kerb instead. Clever boy!