We present an analysis of a physical assembly discrepant, daily and of high didactic value. The assembly consists of putting a ticket on the mouth of an empty glass bottle and then another bottle on the balance placed vertically so that the ticket is between the two mouths. With the system configured, we request to students to extract a ticket out of the bottle without touching or destroying your existing balance. We present a methodology based on the scientific method that will address basic concepts of Newtonian Mechanics using this assembly.