Diners at a growing number of restaurants and bars are being asked to stash away their phones — or even lock them up — as part of a push for more memorable nights out. The trend is gaining traction across the US, with more spots experimenting with restrictions, incentives or locked pouches, Fox News Digital  recently reported . Charlotte cocktail bar Antagonist places guests’ phones in locked pouches for about two hours, while Delilah, an upscale supper club with locations across the country,