Things started going wrong for Neil when he told listeners to the Pirate FM breakfast show that his heavily pregnant partner is "grumpy."
She is due to give birth in just over a month's time.
More than a hundred women left messages on Pirate FM's Facebook page challenging him to find out what it would be like to be pregnant for the day.
So, on Friday he is wearing a fake pregnancy bump, used to teach Cornish youngsters the reality of being pregnant.
You can see how he is getting on here...