Blair Davis says he was in the paddock of his West Lawrencetown, N.S., farm several years ago when he first heard a buzzing noise and looked up to see a drone hovering overhead. 

The Canadian Armed Forces veteran lives with post-traumatic stress disorder, so the feeling of being watched was unnerving. He reported the incident to RCMP and police spoke to a neighbour. 

"It didn't stop. It got worse," Davis said in an interview alongside his wife, Kim. 

On countless occasions, the couple has recorded…