I did think a good response would have been 'well i'll be skinny again soon and you'' still be ignorant and stupid' but that was well after i'd left the shop.
Also, in Boots the checkout lady felt the need to touch the bump was very polite to me though and said she wished it wouldn't be long for me so i let her off!!!
I think a trip to the off licence will be in order, expecially if we're using the fishbowl glasses