For an actor, the biggest perk of working with a director who comes from a theater background is that there are usually rehearsals, a surprisingly rare practice on most shoots. (anyataylorjoy.net)
Quakers believed in treating their workers fairly — a remarkably rare practice at the time. (policygenius.com)
To steal a human life, of course, was kidnapping, and that was not a rare practice in the ancient world, where children were often stolen and placed into indentured servitude. (religion-online.org)