I walk into the mall, looking for an electronics store. I hate having to wear this heavy coat, but it's the only thing I have that keeps my arm covered. I find one called "Radio Shack". I go inside. I know a temporal compensator won't be easy to build with 21st century components, but it should be possible. My on-board computer, Deca, gives me a list of everything I need. I tell a clerk to bag everything. Then I fuzz his mind so that he thinks I paid. I walk outside the mall, slip into a nearby alley, and say, "Bodyslide by one." I vanish.