Research carried out by Quindco.com and reported in the International Express in early July shows that when men go shopping with their female partners it takes the average man 26 minutes before they get irritable. The real breaking points are they are getting hungry, they are missing a TV sports program or they are dragged back into a shop they have already been into. This has a major affect on the average sale per customer and retailers need to think of ways to keep men entertained while partners shop.