"Scare to Spare" is the second segment of the third episode of the first season of The New Hanna-Barbera Cartoon Series. It originally aired on September 17, 1962.
The cartoon opens with Lippy the Lion and Hardy Har Har the Hyena flying in their hot air balloon. Suddenly, their balloon springs a leak, forcing them to jump out. They end up going down the chimney of a castle, and land in the fireplace. Hardy soon spots some stuffed animal heads on the wall, creeping him out. The startled noise that Hardy makes when he runs into a stuffed gorilla alerts the occupant of the castle, a scientist. The scientist has his servant, a monster named Ompsk, investigate.
While Lippy and Hardy investigate the castle to find out if anyone's at home, Ompsk makes his appearance. Though Lippy whacks his foot, this just makes Ompsk angry and chase after them. The mad scientist pulls a rope, and the duo fall through a trap door. The scientist then performs a shrinking experiment on the unlucky lion and hyena. Once miniature, they run for their lives, but the scientist shrinks Ompsk so he can go after them.
However, the duo manage to escape by riding a white mouse, but the scientist puts Ompsk on a paper airplane and sends him after them. Soon, the shrinking potion that the scientist used on the duo and his own servant wears off. And the segment ends with Ompsk chasing after Lippy and Hardy.