Just had a lovely lady visit about places for her dd, who is 3, The dd will be at nursery in the morning and she wants me to pick up and give tea later,now I aked her if I would be in loco parentis while she is at nursery and she said yes, so do i charge her full rate, (£3.00. ph) if i dont i will be down on a potential place but feel a bit mean.. any advice?