[header] How to cope with one too many snubs [title] Keep your composure. [step] When someone snubs you, it can be hard to stay calm. This is especially true if you've been snubbed by this person before. 
Instead of reacting with negativity, take a deep breath and try to view the situation objectively. What is there to gain from reacting in the moment? If someone is aggressive and rude by nature, they probably thrive on a reaction.