The aggressive rampage of a squirrel in southern Germany finally came to an end on Tuesday after a 72-year-old pensioner killed the creature with his crutch. The squirrel however injured three people during the mayhem.

AP reports that the rodent bit its first victim when it jumped through a living-room window in Passau, on the Austrian border, on Tuesday. The woman shook off the squirrel by running in the street while it was still hanging on by its teeth to her.

A Janesville, Wisconsin woman, who had been taking care of a sick squirrel for three weeks, ended up being scratched and bitten by the ungrateful animal.

The 47-year-old woman, whose name is not released, said she found the small and sick squirrel in her window sill about three weeks ago wanted to take "care for it."

In a bid to control the ever-growing population of squirrels, officials at Santa Monica's Palisades Park are injecting them with birth control medicine. The squirrels will be injected with an immuno-contraceptive vaccine meant to stunt sexual development as a form of birth control.

The officials decided to opt for this method of birth control after other methods like euthanasia; poison or gassing failed to control their population. There are around 1,000 squirrels in the Park that can be aggressive and dangerous to the health of people they come in contact with.