if im super broke, on my weekly shop ill buy all my usual shit, but while im doing it ill eat lots of fruit(they cant do anything at all if you bust down some grapes, cherrys, strawberrys, even an apple) if you wanna be ultra sneaky walk in with a empty drink or any bag/wrapper/packet so if they see you eating in there say nah you buggin i bought this in. works everytime, last time i had a choc yoohoo 2 handfulls of almonds and a jerky strap.