A pregnant woman walking across the street

A pregnant woman walking across the street is caught in a firefight between cops and some bank robbers

She’s hit three times in the abdomen and immediately rushed to the ER.
They perform an emergency cesarian section and remove seemingly three healthy children – 2 girls and a boy. Further examination shows no sign of any shrapnel.
The doctors monitor closely the new family but nothing seems amiss. Life goes on apparently uneventful.

However some thirteen years later, one of the daughters comes down and exclaims ‘Mummy Mummy!
I just went for a wee and a bullet came out!’ The mother explains the story and reassures her daughter

Then the second daughter comes running down ‘Mummy Mummy! I just went for a wee and a bullet came out!’
The mother again explains the story and reassures her other daughter

Finally the little boy comes down ‘Mummy Mummy!’ – the mother stops him there ‘ I know – you went for a wee and a bullet came out’
‘Actually Mum – I was having a wank and I shot the cat’