The phrase "against common practice" is correct and usable in written English.
It can be used to describe actions or decisions that deviate from what is typically accepted or standard in a particular context.
Example: "Implementing such a radical change in the workflow is against common practice and may lead to confusion among the staff."
Alternatives: "contrary to standard procedure" or "in violation of usual practice".
In other instances, the laws stand so much against common practice that they are widely disregarded.
Rebeck might have mined this for comic effect if it happened once: if Rickman was forced to read a short story right away (against common practice) and then never got past the first line because he eviscerated it so completely in its construction, why that would be funny.
He again took the lead on the issue of the Paymaster of the Forces, and commanded that Richard Rigby, Paymaster until 1782, "do deliver to the House an account of the balance of all public money remaining in his hands on the 13th day of November last", something Rigby complained was against common practice.
This, in fact, goes against common practice: Many people try searing the steak to begin with in order to "seal in the flavors".
This consideration suggests strong evidence against a common practice of using Faraday's law to estimate electrolysis yield.
The Choosing Wisely program recommends against the common practice of conducting X-rays or scans on patients with simple back pain that is less than six weeks old.
It also counsels against a common practice by many residents: buying cheaper window units instead of the appropriate models to fit into the existing metal sleeves, ensuring a bad fit.
For comparison against the common practice of assessment by clinicians, we validated an 18-point checklist developed and used at Barwon Health.
Often, discrimination against the disabled is common practice, in developing and developed nations alike.
Police have said Nicolas may have been crossing against the light, a common practice in L.A. and in New York.
Filing criminal charges against opposition figures was a common practice during former President Hosni Mubarak's era.
