Most Ridiculous Thing You've Heard

Just curious, what's the most ridiculous thing you've been told or overheard?

In the break room at work the other day I overheard one coworker telling another that vaccines cause Downs Syndrome and that her doctor wanted to give her unborn fetus a flu shot directly when she was 4 months pregnant after she refused it herself.

I'm just curious what vaccine can give you an extra chromosome, and why an unborn child needs a flu shot... 🙄🙄