Oscar's Birthday Present

It's Oscar's birthday. The cake and candles are ready. Oscar is feeling blue because no one has remembered his birthday. In pops Astronut from outer space with a gift of his own: a space scooter. He just happened to pick up the nuclear-powered jet ride at a discount store on the other side of Jupiter. After a few flights around town, and with everyone taking about the UFO, who should show up at his door with questions? The government...