We've all been there: so dog-tired after work you can barely keep your eyelids open on the journey home.
But one Tube passenger took it a step (or three) further when she actually laid her head on a stranger's shoulder and went in for a sleepy snuggle.
The embarrassing footage was uploaded to YouTube, and some have suggested it might be a prank.
But, either way, it's still pretty high on the cringe-factor scale.
See the video here: