When you leave your children with someone, you rely on them completely to make sure they're safe.
But one father was left furious after discovering that his babysitter had fallen asleep on the sofa - and decided to teach her a very cruel lesson.
The man, named only as Christopher and believed to be based in the US, had already left for work when he realised that he'd forgotten some paperwork at home.
When he went back to fetch it, he discovered the babysitter, identified only as Sarah, taking a nap on the sofa.
After taking a photograph as evidence, the father decided to take his children with him, in order to make it look like they'd been kidnapped.
Messages shared on Facebook showed how the babysitter began frantically calling and texting her boss after discovering that the children were missing.
After ignoring several phone calls from Sarah, Christopher messaged her: "Whats up? Hello? Why you blowing me up??"
When Sarah told him to "Call me now", he refused, claiming he had no signal and asking again "Whats up?"
Christopher then told Sarah to tell him what was going on, writing "I cannot call wtf is going on. Are my kids ok?", adding "Answer me now".
Sarah then explained how she'd called his wife's school, with one of her colleagues telling her that "the boys were ok".
When the father then asked his babysitter "Where are my f****** kids Sarah", she responded: "If I knew I wouldn't be blowing up your phone!!"
He then asked whether she'd called the police, with Sarah replying that she had. She said the police had told her "call your employer they probably know what's going on."
Christopher finally told her the truth, saying: "I took my f****** kids at 10. Get out of my f****** house! I may be pressing charges on you for neglecting my f****** kids."
He added that she was "fired" and that he was on his way to the police station.
The exchange between the pair has gone viral online, with social media users divided over whether the father had overreacted.
It is not believed that the police took the case any further.