6.48/10 2006-03-20 15 minutes.HDPat does some gardening before work. When he tries to remove a weed, he sprains his back and Sarah calls Dr Gilbertson in. Pat needs a day in bed so Sarah offers to take the post instead. Everyone is surprised to see Sarah delivering the post instead of Pat. Sarah has also forgotten something.An: 2006Studio: CBeebies, BBC OnePays: United Kingdom