I saw a motion activated sprinkler that scares birds away and it looks like it would work but...I don't want my garden hose on all the time. I was thinking of a pump in the pond that is motion activated. The spra would be on the edges of the pond pointing toward the center. The spray would be like a fan spray. It would come on for a few seconds like a motion light. Just enough to frighten away a bird or cat and the water would just return to the pond. Do yall think that is doable? Or ya think it would work at all? Has it been tried before?