Marcelo jokingly admonishes some of his students for their ingenuity in creating a work-around for a missing elevator button to get to the third floor of the academy's building: A big part of training jiu-jitsu is practicing efficiency, and finding short-cuts when solving problems. However, there seems to be a certain limit in how effective a mindset for finding energy-saving solutions can be for one's own personal development. We must learn to appreciate some kinds of hardships over others and take them on willingly for our own good if we are to improve ourselves in training.