Mmm know this well, the eldest went through a stage of this when she was two and used to end up screaming in the middle of the shop kicking and flaying her legs and arms about...talk about embarrasing...mind you if the others play up now I just ignore them...stuff who is looking and moaning....they only play up with me...good as gold when the o/h is about Pppffttt typical.....the stage will pass
good luck for all your holiday shopping though x