Over half of consumers have walked out of a store when they were going to make a purchase because of long queues, new research has revealed. The survey of 1,058 adults, which was carried out by Mintel, also found that a further 35% of consumers have left a store where they were going to buy goods because they could not find the product they were looking for or the price of the item.  The same number of consumers have been put off certain shops due to unattractive store design.