Please release me.

I mentioned the teapot/mini bowl problem on Facebook and several friends came up with suggestions of how to get the two bloody things apart.
WD40 was popular. Swarfega. Ice and hot water. Body lotion. Cooking oil.
Louise asked if there would be a prize if she could separate them (she was on the rota for today) and I lied and said yes.
This afternoon, after the lunchtime rush (and it was a rush. Three large groups, only two of which had booked) I removed it from the fridge and handed it to Louise. She looked at it, turned it around for a while, and then when I wasn’t looking she took a large knife and gave the little bowl a sharp blow.
Out it flew.
Without breaking.
“It was risky,” she said, “but it worked.”