'Zen curtain' saves birds from hitting glass windows
They should make one for people.A Midwest bank was remodeling their in-supermarket branches with glass walls. It looked really spiffy and let in a lot more light. Then a few weeks later they had decals up on some of the glass panels and they were frosting others and I asked a teller why they changed.It turns out that many people were slamming into the glass walls,  usually when turning a corner quickly, (my guess: while staring at their phones!) and hurting themselves, so the bank decided it was better to get ahead of the inevitable lawsuit and make the clear glass more visible.How we've managed to survive this long as a species is beyond me.