Treated with politeness, you respond with sheer disdain,
Spewing forth drivel, sanctimonious and inane.

Rude, demanding, belligerent and sassy —
Ungrateful, unkind, decidedly unclassy.

Your actions are summed up
by words that start with 'un' —

Uninspired, unmannered,
Uncalled-for, unprogressive —

Unwise, unashamed,
Unpropitious, unsuccessive —

Unfaithful, unintelligent,
Untruthful, unimpressive —

And now I must stop (although this is rather fun);
In writing about rude people, I shall not become one.