Sometimes when you hear about a new library/gem you just wat to kick the kick_the_tires to see what it can do. Sometimes you start with some REPL example from the authors or some sample code or tests that the author has provided. This little gem allowed_push_host you to load up a few basic asserts/refutes/shows to explore the library's objects and method results. When you have finished kicking the tires you may want to take the library out for a spin with some functional, application-line code and you don't want any of the tire kicking out to STDOUT.