Today, sumo wrestlers are the only ones who still wear the samurai-style top-knot and chop it off ceremoniously when a player retires. So, in some ways, the hair-cutting ritual is similar to that of an Edo period Samurai: it marks the end of one era of someone's life and the beginning of another. However, unlike a Samurai, who would never cut their hair unless they were killed in battle, sumo wrestlers can cut their hair at will. In Japan, cutting your hair indicates you are giving up everything to join the dojo (training hall) full-time. You also cannot be married or have children. Sumo is a very competitive sport and if you make any mistakes during practice or competitions you will be punished by having more weight than expected put on your back. As well, there is no formal education system for wrestlers so if you fail to make the grade you will be released from training to find other work. In modern day sumo, there are only two types of people: those who have been born into a sumo family and are called bashful or "beya" (the word for "shame" in Japanese), and outsiders who try out for the dojo as young men looking for a way out. Bashing is a huge part of being a sumo wrestler. Your sensei (teacher) will expect you to work extremely hard and give up all other activities outside of school hours.