The sheriff gallops around the pond on an imaginary horse, followed by a party of faithful guards who obediently clap pineapple halves together to simulate the sound of hooves. He stops suddenly, tugging imaginary reins, and pretends to dismount his make-believe steed. Drawing himself up to full height and brushing back his off-white cape, he turns to face the camera and delivers his line. Monty Python devotees around the world would instantly recognize the scene – and likely chuckle at the pineapple-for-coconut substitution. Python fans that live in the Brandywine Valley will have a special connection to the scene, because this time, the sheriff, his guards and the percussive pineapples are part of a short spoof, shot at the Mt. Cuba Center in Hockessin to promote the Newark-based technology company Analtech. Part comedy sketch and part commercial, the film demonstrates Analtech’s signature product – thin layer chromatography plates – by telling the story of Ana L'tech, who uses the company's products to prove to an angry mob and an incompetent sheriff that she is not a witch. The film will be a viral video – a clip posted on the Internet and shared between techies through e-mail, instant messages, blogs and websites, said Ken Grant, director of sales and marketing at Analtech. Viral videos make a lot of sense for the audience Analtech is trying to capture, Grant said. “It would not behoove us to take out a 30-second ad during t ...