A British mother opened a new bag of bananas only to discover a nest of deadly spiders that pack a torturous side-effect with their bite.
The Telegraph reports that Maria Layton, 43, was about to serve the bananas, which her husband bought from popular British grocery chain Tesco, to her 6-year-old daughter, Siri.
She found a funny spot on the back of the banana, so she retrieved another, only to find it contained a webbed cocoon.
Layton Googled the image to learn that the food was infested with Brazilian Wandering Spiders.
Dozens of them could have been stored in each banana, which had been in her home for just one day and had come from Costa Rica.
Brazilian Wandering Spiders are known as the deadliest spiders on the planet because they can kill a human in just two hours with their bite.
Male victims experience the most pain when bitten, however, as the venom can produce painful erections lasting approximately four hours.
Scientists are testing the poison as a possible ingredient in future treatments for erectile dysfunction.
The spiders are nocturnal and often favor a certain plant for hiding during the day: banana trees.
Layton soon realized the cocoons were beginning to open, so she applied her newfound knowledge of the creatures and put the bananas in the freezer.
She then called the supermarket, only to be told it was up to her to return the bananas if she wanted a refund.
Tesco were a bit useless, I was really concerned about the possibility of this dangerous spider and spider eggs in my house and really wanted some helpful advice on how to act. I wasn't sure if other spiders or eggs had escaped when I ripped the bag open. I posted the picture on Tesco Facebook page and they told me to send the wrapper in so they could get the bar-code to refund me. I was shocked, they failed to see the potential threat to me and my family and thought I was only interested in having a pound or so back.
The mother of two spent an hour and a half calling different services to get the bananas out of her home.
But it appears she just ended up bringing them back to Tesco herself.
A Tesco spokesperson told the Telegraph the store does not employ people who go to customers' homes and investigate such issues.