Guy gets revenge on a mud-slinging neighbor by reporting his homemade dojo to the city's permitting department: 'Petty revenge served by subpoena'

Love thy neighbor. 

Although it sounds simple, for many people whose neighbors are a steaming garbage heap of a person, this is a daily challenge. Although you waive at them while they're mowing their lawn, they still give you the stink eye every day when you go outside to fetch the paper. What's their deal? One neighbor set an extra low standard for neighborly friendliness when he decidedly turned a guy into his mortal enemy. 

Unprovoked, the entitled neighbor accused the guy next door of defacing his property without any proof or reason. Although the guy refused the allegations, the neighbor insisted on getting 'payback' by starting a neighborly feud that was destined to end horribly. The accuser started by having a big, no-expenses-barred party until all hours of the night and topped off the evening by throwing trash into our hero's backyard. Fuming and unwilling to stoop to the neighbor's level, he decided to get petty, reporting his man-cave, dojo to the city's permitting department. 

If you're willing to go to war with your neighbor, assume there are likely to be casualties–in this case, a fully furnished, plumbed, and epic dojo house lacking the proper permitting.