In life, people usually tend to think that things cannot happen to them, or won’t happen to them if it has never happened to them before. This is the mindset that drunks usually have when they try to enter their car and drive home under the influence. While they may genuinely think they are fit to drive, the thought that nothing bad will happen to them lurks in their minds.
Someone who has never been beat up before may suddenly think they could beat anyone up, and that they are unbeatable. While not everyone is like this, there are some people that actually are, until they get humbled quite quickly. In boxing or MMA gyms, they happens to every beginner that joins.