There's no room for tolerating people who I don't value. Sure, in my job I may have to deal with them in some way but I find avoidance preferable. Customers are a different matter, I get paid to tolerate the bad ones. It's all subjective and in a post as short as my original also difficult to get the whole message across.

Essentially, I have no tolerance for rude people. Accepting their behaviour condones it.