It's the scourge of modern travel - just exactly how do you determine who gets to use the armrest on a train/plane?
Just look how awkward it can get...
These two actually look like they could murder each other over the issue.
In fact, this happened next...
Utterly tragic.
So sacrifice something precious, and thank the travel gods, because some clever folks have only gone and solved it.
This is the 'Paperclip Armrest'. Just look at its glorious simplicity...
And look how much happier our two travellers are...
They are clearly still far from ever even remotely attempting to strike up a conversation and still look a little edgy but look!
They're BOTH resting their arms without having to touch each other!
We truly live in a glorious age...