A couple moved to the country when they retired. One mild winter, they had a bit of a problem with rodents in the garage. So they bought one of those little sub-sonic mouse repellant, the kind you plug in and they emit some kind of sound that drives off mice. The husband was showing it to their neighbor and explaining that it was an animal repellant. He told her that it worked on every thing from mice to elephants.
"Really!?" she said, "Mice to elephants, eh." sounding a bit skeptical.
"Yes," he replied, seriously. "We've had it here for a couple of weeks now and we haven't had a single elephant in the garage the whole time!"