There can be disagreements between colleagues at work and some people may have issues with their superiors too. But while arguments are not new, at times people may tend to take things too far.

62-year-old Robert Tyson took a rather extreme step to get back at his boss after a row over her management style. The man mixed semen in her drink at a dermatology centre in Florida.

But the 37-year-old woman noticed a distinct taste and smell while drinking water from her mug following which she found white substance. She claimed that it was poured in her mug when she was away and a similar incident happened a while back as well.

CCTV footage revealed that Tyson did go in her office with a specimen container bottle and poured contents in her mug. He reportedly sent a letter of admission and guilt to the HR asking for the matter to be ended quickly.

He lost the job last month and is due to appear in court in September.