But that's exactly what one poor 22-year-old did after her mum told her it would prevent her getting pregnant!
Unsurprisingly, it didn't work as well as she hoped and the Colombian lass found herself in hospital after the spud was up her ladyparts for a fortnight.
Initially she just told the doctors she had abdominal pains but she eventually confessed the truth to medics when they assessed her body and found the veg.
Due to its warm conditions, the potato had even germinated and started growing sprouts.
Thankfully, doctors removed it without surgery and the woman has no lasting problems from the experience.
She was quoted in The Sun confirming that she had taken her mum's word, saying: "I believed her."
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