Even under the circumstances.
German dad Helmut Seifert, who disapproved of his teenage daughter's 57-year-old boyfriend, went to the man's home and castrated him with a bread knife, escaping with his testicles.
After learning that his 17-year-old daughter was having a relationship with the older man, Seifert went to the town of Bielefeld to speak to the police.
Having learnt that they were powerless to help him, the enraged father decided to take matters into his own hands.
Police said: 'The man recruited two work colleagues at his factory and then went to the house of the victim.
‘The man was forced to remove his trousers and, fully conscious, he was castrated. The severed testicles were taken away by the perpetrator.'
Despite losing a lot of blood the man managed to call police and is now making a recovery - but the castration is irreversible.
Seifert, who pleaded guilty and is expected to be tried for attempted murder next year, has so far refused to say who his accomplices were.
He said: ‘I received a phone call anonymously that my daughter was involved with a guy 40 years older than her. You said you couldn't stop him, so I did.
‘I saw it as my duty as a father.