The Resignation of Mr. Bagsworth is a 1937 Australian stage play by Lionel Shave.
[6] According to Wireless Weekly, "We all know the type of Banff Official, who is wedded to set habits, who eats at the same restaurant every day, even sits in the same chair, orders the same food.
For nineteen years he had eaten roast beef and apple pie for lunch.
Then suddenly a great and lucrative opportunity for breaking out of the groove of habit came to him.'
This amusing, neatly-written comedy by Lionel Shave gives the answer.