It was yesterday in Morrisons that there was trolley rage today actually was surprisingly calm apart from the checkouts being busy but that's actually pretty normal for the Morrisons closest to me.
Yesterday had people (in particular the OAPs) literally walking off and leaving the trolley still moving while they went of to look at something or go to another aisle to pick something up, had people blocking full sections so no one could in to get anything especially bad at the bakery section and the counter that has some of the cheeses and meats etc. Also had families and groups standing around at the end of aisles chatting and again blocking them and some just seem to take an age just to study one item and then don't get it anyway.

Got lucky with a checkout that just opened as the one I was about to queue at started to have problems so got shouted to the next checkout and so avoided queue rage.
Today wasn't too bad the shop was usual standard of busy although had literally only popped in for a last couple of things they didn't have yesterday so not too bad and hopefully avoiding going anywhere near any major shops tomorrow.