Not quite on a plane ... but on the subject of calls ...
I was sat in CDG a couple of weeks ago and a woman came over to near where I was sat (from near her companion) and proceeded to have a conversation at volume about how they weren't going to make their delivery targets for Christmas unless something significant changed in warehouse processes (like upping production 50%).
She strongly felt - and I recall this - that having sat the warehouse teams down and told them to find a solution was enough and they should have found one by now and apparently they'd just told her there wasn't a solution due to under investment in people and this wasn't good enough.
She was deeply concerned about their new operations director who was supposed to have been brought in to fix the processes and didn't seem to have done anything in the 3 months he'd been there and which members of the management team should sit in on his appraisal to deliver the "get on with it or get out" message.
Anyway - she gave me enough information to work out who the delivery director was, look him up on linkedin and from there derive the company, from there find her, figure out who she was talking to and also work out which of their clients weren't getting their deliveries. All in the space of about 15 minutes.
I was seriously tempted to message him. But I figured that would make me as unprofessional as her.
But I was more amused by the idea that this particular company would be majorly failing on their orders for major retailers which (apparently) they've known about for 6 months and have failed to scale for and I felt that amusement would satisfy me.