When a child found such a surprise, he began to scream, cry and call the adults, reports mirror.co.uk.
The incident occurred in Barnstaple, in South West England.
"Fortunately, the condom was in the package", said the boy"s aunt, who got an extraordinary gift.
According to her, the boy began to ask what it was and when he learned that he began to shout even more.
"A condom in my breakfast!" cried 4-year-old nephew, said the woman who wished to remain anonymous.
This problem is exacerbated by the fact that Tesco cornflakes are among the most popular in England.
Therefore, when a woman addressed the company with a complaint, she received a voucher for gifts from the company, apology and a bouquet of flowers.