It is 'customary' to hold the door open for someone who is entering a building behind you.
He did the work with his 'customary' efficiency.
She dressed in her 'customary' fashion.
(..) on which to establish a Vulcan colony. Spock, in this case do yourself a favor... put aside logic, do what feels right. Since my customary farewell would appear awfully self serving... I shall simply say good luck. This assembly calls captain James Tiberius Kirk. Your inspirational valor and (..)2009 Star Trek