You should always make sure you check your photographs before you upload them on to the Internet.
There might be something lurking in the background that you hadn't quite noticed beforehand.
These incredibly awkward images prove that point and will stop you from ever posing for a picture in front of a mirror again.
From being caught with risque intimate objects in the background and being snapped on the loo, to revealing a bit more of yourself than you had hoped, these cringe-worthy shots were always bound to go viral.
This compilation of images shared on photo site Imgur will make you think twice about the photos you take.
The first photo shows a man standing tall and proud in his suit dressed ready for what could be his prom.
The only problem is, the barely clothed man taking the photo can clearly be seen in the mirror behind him.
It was a similar situation for a woman queuing at a fast-food restaurant - with her reflection on the shiny table leaving her looking as though she was half naked.
Another reflection-fail shows a corset-wearing woman posting a sexy selfie - only to accidentally reveal that it was in fact her young daughter taking the snap.
One woman was caught in the act of faking a picture when she posted a photograph of her apparently 'sleeping' - but in the mirror behind her, she can be seen holding the phone.
To make matters worse, she captioned the photo: 'Lol bae caught me slippin. Love him. Good night from us.'
A woman found herself in a sex-toy blunder when she posted a picture of herself in her bathroom, seemingly unaware of the dildo stuck to the shower wall behind her.
And she's not the only one. Another woman was caught taking a bathroom selfie and posted it online before being told that her pink dildo was in view.
Will people never learn?