The quote emphasizes the importance of respect and boundaries in social situations, particularly regarding personal spaces and roles. It suggests that someone who assumes authority or a dominant position without invitation is untrustworthy. This behavior indicates a lack of respect for the roles established within a group or relationship. It can reveal deeper character traits, making it advisable to be cautious around such individuals.

In the context of the book "Flawed" by Cecelia Ahern, this quote serves as a warning about understanding interpersonal dynamics. The assertion highlights the significance of authenticity and the risks of allowing uninvited individuals to claim power. Trust should not easily be given to those who disregard social norms and the rights of others, as their intentions may be questionable.