There's a whole other world of activity happening underground. The tube not only connects our city but our social lives, with so many of us relying on it whether we're meeting a date or moving house.
Since it's such an integral part of our everyday lives, it's fair to say it has seen a lot. Although the more weathered Londoners are thick-skinned to the odd bit of sick and impromptu singing, there are still some things that come as a surprise.
So, we want to know: what's the weirdest thing you've ever seen on the tube?
We want to hear all of your stories, from walk-of-shamers to WTFs. Fill in our form anonymously below and share your stories – the weirdest, most wonderful submissions will be picked to feature in Time Out magazine.