Raptor -
<font color="blue"> Is there anthing I can do to combat this? I don't mean to begrudge anybody the use of their land, but I sure as heck didn't want something like that next to me.
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Sounds like bad luck, and I don’t like motorcycles anymore than you, but it sounds to me you are indeed trying to "begrudge" someone the use of their land! (i.e. "combat this") If you start having their customers/guests trespass or damage your land, that's a whole different ball game - but that's not what we're talking about here.
It's all about property rights - you have a right to do what you want with yours, and they the same. It's unfortunate that they opened such a place next to you, but instead of trying to tell people what they can or can't do with land THEY purchased (which is EXACTLY what you are trying to do), I'd suggest you do one of 3 things. 1) Buy them out, 2) Sell and buy someplace else, or 3) deal with it.
I spent a great deal of time picking my place out (and checking with my neighbors) before I purchased. If one of them changes their mind and wants to stop raising cattle and put an amusement park on their place, that's their right - not a dern thing I can (or would) do to stop it. Of course, I’m a man of principle and not someone who believes in the verbiage of “Do as I say, not as I do.”
As for the idea of sabotaging their business by putting poop on your property - I think that is about the worst idea I’ve heard in a long time. See here’s the difference between what they are doing and you going that route. They aren’t intentionally trying to hurt you - they are just trying to establish a lawful business. You “booby-trapping” the area with excrement? The only reason would be to HURT them - e.g. Revenge or a vendetta if you will. Doesn’t say much for you as a person if you go that route - other than that you are the spiteful mean-spirited type, and, quite frankly, I suspect you'd be opening yourself up to a potential lawsuit (e.g. on the basis of intent. - Not saying they'd win because you still should have the right to do whatever you want with your place, but you'll be out the cost of lawyers & such to defend yourself.)
No, try and be a good neighbor and they *might* just try and accommodate you to a degree - start screwing with them and you’re just asking for them to try and “get back” at you.
This is a hot button topic for me (if you couldn't tell) - very few things hack me off more than someone trying to tell someone else what they can/can't do with property when they have absolutely NO LEGAL RIGHT to do so. You don't pay the taxes or the bank and as long as they are meeting existing legal restrictions, you have absolutely no business telling them how to use their place.