I genuinely don't know...I was standing looking at something in M&S...moderately busy but not rammed.
Anyway I felt an arm around my waist...it was a man who was wanting to get past and as he was approaching from behind me, that was his way of letting me know...putting his arm around my waist and kind of moving me to one side. 
I whirled round and if my eyes could shoot fire I swear they burned him a bit because he kind of stepped back quickly and looked a bit nervous...he said "Sorry!" in a genuinely sorry way...had my two DC not been nearby I would have said "You don't touch women you don't know you knob!"
But as DC were with me, I didn't say anything.
WIBU to be so annoyed? Is it normal to do this when someone's in your way?