I am speechless.......
The way it moves is so....idk......
I really do not know on this one, but watch all of the supposed video experts on this site try to offer a ridiculous rationalization.....

We unleashed a monster beneath the sewers of the North West, in an online April Fools stunt to highlight the perils of flushing rubbish such as baby wipes and cotton buds down the loo.
The creature, which appears on grainy CCTV footage shot in real sewers, is part of the What Not To Flush campaign, which uses school visits, community talks and PR to encourage people to think before they flush. You can watch the spoof films by clicking on the boxes below.