Shock horror - Hangar rash.

As unfortunate as it is, events like these have been around since aviation started as an industry. We might find ourselves in 2020 and think we're all smarter than those who have gone before us but year on year, examples like this from all over the world show perfection is very difficult to obtain.

I understand the 787 concerned is already back flying so we're not talking anywhere near the NZE vs Catering truck deal.