A very Close Call
I was heading to New Zealand for a photo shoot and had my Lowepro camera bag loaded with my D850, D810, 14-24, 24-70 and 70-200, Mac Air and other bits and bobs. I placed it in the overhead locker.
On retrieving the camera bag to get off the flight I found the thick back padding totally soaked with water. The woman next to me had left a bottle of water in there and with the loss pressure during the flight it leaked and emptied the contents into the locker.
Luckily the waterproofing on the Lowepro bag is excellent and the insides remained dry. If it had been a lesser bag it could have been nasty.
The hair drier in the hotel got the bag dry but it was not a nice experience.