Lidl makes fun of Sainsbury's cock-up

Earlier this week a TV freelancer in the UK called Chris Dodd spotted this poster encouraging Sainsbury's staff to get shoppers to spend an extra 50p each time they visit.
.@sainsburys not sure this is supposed to be in your window... pic.twitter.com/Zk9GCliIWO
— Chris Dodd (@mynameischrisd) September 29, 2014