Insulated s/steel mug was a bit too high to fit under the coffee machine because it had a flared 'skirt' around the bottom (medievil style)
No worries I thought, I'll just take a few mm off the bottom. Because it's a double wall mug (effectively hollow) you can't squeeze it very hard in the jaws or it just crushes.
I'll just go nice n easy I thought.
Prolly had the speed a bit high too.
Was feeding it super slow....real careful.... all going well.... then BOING!
The tool dug in, levered the mug out and away she flew.
I'm not proud of this confession... but you forced me to tell it
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