Never shirk from doing anything which your business calls you to do.

Related:

• Call upon a man of business during hours of business only to transact your business.
  Then go about your business and give him time to attend...
• No one is unemployed who minds his own
  business...
• The successful man is the one who finds out what is the matter with his business before his competitors do.
  Roy L....
• He who minds his own business is never
  unemployed...
• It's business doing pleasure
  with you...
• A man who can't mind his own business is not to be
  trusted with the king's. --...
• Only he is successful in his business who makes that pursuit which affords him the highest pleasure sustain him.
  Henry David...
• It's been a business doing pleasure
  with you...