LONDON – Ever used a portable toilet and found yourself worrying that some joker might try to tip it over? Well, don't – it turns out there are actually far more unsettling things you should be worrying about instead.

Imagine how an unnamed woman attending Cornwall's Newlyn Fish Festival felt Monday after she nipped in to a portable loo, shut the door, then suddenly felt the ground moving beneath her feet after a forklift truck driver failed to realise that the toilet he wanted to move still had someone in it.

"She got in the loo and then it was picked up and taken to the other side of the harbour with her in it," Newlyn harbourmaster Rob Parsons told BBC Radio Cornwall.

"I think she was suffering from a bit of shock or she thought she had teleported across to the other side of the harbour."

Luckily the woman in question managed to escape the incident unscathed, although we imagine it'll be awhile before she visits a portable toilet again.

Even more disturbingly, though, the incident doesn't sound like an isolated occurrence.

"It does happen quite a bit to be honest," Mark Kempthorne, director of portable toilet provider Andyloos, told the BBC. "I've done it a few times."

Kempthorne went on to explain that forklift drivers often pick up a toilet by going "in through the back entrance" and this can sometimes lead to mistakes, and while we're not completely sure what he means by that we know it doesn't sound good.

TL;DR: Probably avoid using all portable toilets in future unless you absolutely have to, and if you do use one be absolutely certain to check there aren't any forklifts in the near vicinity first.