[zipppy]

That's a slippery slope; if my neighbors plant tulips and I HATE tulips, I don't get to sue for damages, even if the tulips weren't there when I moved in.

[nradov]

There is no slippery slope. The legal doctrine of quiet enjoyment is well established with clear limits based on centuries of precedents.

http://legal-dictionary.thefreedictionary.com/quiet+enjoymen...

[gamblor956]

Legally, that isn't even remotely a slippery slope. There is a vast difference between a decorative object located solely within one's property which has no effect on neighboring properties, and an for-profit unlicensed/illegal activity which affects the neighbor's safety and use of their abode.

[st3v3r]

Yeah, no. That's not a slippery slope. That you just being obstinate.