thumb - i wouldn't worry about trying to make ds come out of nappies (unless he's 14 or so). my experience with dd was that trying to encourage/make her do something just makes her do the opposite (wonder where she gets that stubborn streak from) & once she was ready for walking, or no nappies, or whatever, it just happened.
of course, your child & up to you, but if you just feel like you 'ought' to - meh.
stranded - i know that m&s. i would love, just once, to have the time to spend at cribbs causeway with a credit card (with magic free money), no-one else to bother me, except some lacky to follow behind & carry bags. and perhaps a 2nd one to do the lining up to pay, whilst i continue shopping.
i would allow a few other shoppers to be there, to add some ambiance, but it mustn't be too crowded, i've got used to a lack of crowds now & don't like them so much.