Admit it. We've all been there.
Someone says something so ridiculous that you just can't help but produce an eye-roll of epic proportions.
Sky News presenter Janine Perrett was in that situation last night - except her disdain was captured live on air.
Perrett couldn't hide true feelings when co-host Ross Cameron suggested there could be a possible link between autism and vaccinations.
"They say the autism link has been described as 'discredited', except the fact on the data is that the autism has rapidly increased, coefficient with the increase in vaccination," Cameron said.