Possible Clues:

• Be idle and accomplish nothing
• Agent sat out to vegetate
• Remain still, or hit back, breaking leg
• Don't move from playground around elevated shade
• Some trust a gnat eventually to stop moving
• Do nothing when food is sent back containing insect
• Make no move to return food without taste
• It's natural to keep in step and fail to be vibrant
• Stop development, say, to introduce grand new article
• Heading for Spain, possibly get a tan and be inactive