Journeyman:

 

scuwp: I still have no idea how dog poop floats across the ground magically and through small gaps in a fence. Defies all logic. Maybe older dried poop when hit with a lawnmower? The whole scenario seems very odd.

 

Is this your polite way of saying the neighbour is chucking the poo over the fence? Because if it is, I agree that's probably what is happening.

 

That, or it's dog wee running under the fence.

 

Not dog poop at all perhaps?  Maybe random cats in the neighbourhood?  

I mow over and/or pick up cat poop on my lawn all the time.  Annoying but not losing sleep over it, nor am I particularly concerned about my health as I take basic precautions like not eating it and washing my hands.