People are just realising what holes in airport windows are for – with banana for scale
![People are just realising what holes in airport windows are for – with banana for scale](https://i2-prod.dailystar.co.uk/incoming/article33338375.ece/ALTERNATES/s615/2_TEASER-MAINSOCIAL-ONLY-image.jpg)
Glory holes, cupholders and even a James Bond-like sniper hole, were all suggestions proffered up by people trying to answer the question of why there are glass holes in airport windows