Recent articles have been popping up noting that the new HQ glass walls have a key design flaw - people don't notice the walls are there and keep walking into them.
Here is the one of the many options on articles out there -
https://www.engadget.com/2018/02/16/apple-employees-walking-into-glass-walls/
The article pokes at the recent trend of Apple products having these types of minor design flaws that lead to uproar from the general population, but maybe the root of the problem isn't actually the building design.
Maybe it is the employees themselves. Is everyone so distracted that you can't see a glass panel right in front of you? While I haven't been in the building myself, I can't imagine it is that difficult to identify glass versus not glass. We've all been dealing with glass windows and doors for most of our lives, this really shouldn't prove any different.
Pick your heads up Apple employees! Avoid those spaceship walls!
Some fancy designs on the glas might do the trick. I would say onls one stripe per panel would be enought.