Posting adorable photos of your cute kids on Instagram is completely harmless, right? Well, it appears Jennifer Garner doesn't think so and decided not to take any chances when she issued a stern warning in the comments section of one such sweet snap.

On Sunday, Chrissy Teigen posted a photo of 10-month-old Miles looking like a John Legend mini me in a storage bin (see, cute and harmless, right?), but it wasn't long before Jennifer added her alarmist observation.

"I see my kids' nanny liking everything you put up with your gorgeous kids and I'm here to tell you, don't get any ideas, either of you," the mum of three wrote.

Chrissy almost instantly replied, alongside a cry-laughing emoji: "For anyyyyyyone reading this I ONLY POST THE CUTE STUFF."

So, it seems like Jennifer's childcare situation is safe for now, but as anyone with a good nanny can attest, she was right to be better safe than sorry!