PROPRIETY

(n.) the sate of being proper, appropriateness (pl.) the standards of what is proper or socially accepted
 * Propriety**

Synonyms: fitness, correctness, decorum Antonyms: unseemliness, inappropriateness

While Ishmael was is the army it was the propriety to do drugs.

At USM it is the propriety to wear the uniform, as shown here by by Mr. Mullen.

-Rithwik