She runs a singing class for mums and babies. This week it's Christmas songs she's adapted. So she practised. She practised at home, practised singing to her little boy and practised to a large group of her mates on a girls' night out. Girls on a girls' night out? Dangerous!
She'd made up her own Christmassy words to 'She'll be coming round the mountain'. She sang:
"He'll be coming down the chimney at Christmas time."
"Coming down the chimney? I bet he will!" cackled Michelle. Dirty laughter erupted.
Once said, never forgotten. So all changed now... to prevent involuntary giggliferation.