Motion detector mounted upside down

Has anyone tried mounting the motion detectors upside down, possibly with a wedge mount, to shoot the beam horizontally across an area, rather than the downward beam? I ask because I envision doing this, to avoid picking up our dogs. Below is a link that shows the vertical beam pattern of 45 to 81 degrees outward. With a 9 degree wedge mount and mounted upside down, the pattern should be 90 degrees (straight out) and upward. Mounted at a level to see over furnishings and such - maybe about 3’ high, this should pick up humans walking around, but not the dogs.

I am still waiting for my Ring items to ship, so I’m asking if anyone has tried this, while I wait to be able to do so, myself. Thank you.