Possible Clues:

• In the evening, by the sound of it, there are not so many so dogged as this
• Official order restricting people's movements
• Signal to remain indoors
• In time?
• Fellow in fix with travel restriction
• When people were housebound, hardly any had dog at first
• At the end of the day there's not many so brutal as this
• A time to remember?
• Nighttime deadline
• That makes one stay in with not many such brutes,perhaps