Fast Company takes note of a beer glass innovation at Salve Jorge Bar in São Paulo:

 The Offline Glass, by Mauricio Perussi, Melissa Pottker, and Fischer&Friends, is a low-fi way to stop any friend from using their phone. It’s essentially just a glass with half a bottom, so if your iPhone isn’t laying on the counter, perfectly wedged in its gap, your beer will spill all over the bar.

Of course, for the clever drinkers amongst you, there are probably conceivable workarounds. Wedge a cocktail napkin in there. Just hold your phone and beer at the same time. “We do not intend to [actually] solve the problem,” clarifies Art Director Mauricio Perussi. “The Offline Glass is just a funny way to annoy friends who only have eyes for their cellphones.”