[Joe 6-pack]

I would think a post on either side of the driveway entrance with a chain hanging betweeen them would do the trick at a relatively low cost. The downside is you’d have to take it down and put it back up each time you wanted to come or go. The upside is that you could lock it which would pretty effectively block him from doing what he’s doing and creating your problem.

[al_c]

Maybe have the local police watch him drive the wrong way one morning?

[InvisibleChurch]

What does “sketchy” mean?

[Dan(9698)]

If driving over a pile of gravel knocks your car out of alignment, you have a poor car.

I am sure the alignment shop will go through the alignment proceedure for you as many times as you bring the car in.

They make money doing that.

I would bet the car isn’t out of alignment.

[UCANSEE2]

[WestwardHo]

If negotiating with the offending neighbor does not seem wise, you have three options, none, delightful. Could you park some place else? Do you own a shovel? Is the space too tight to plant a couple t-bars with an orange rope?

[Constitution Day]

Install gun emplacements.

[ansel12]

I'm not looking to damage his car

How did that enter into it, do think that is sometimes OK?

[Tea Party Reveler]

Arrange a meeting with all 3 parties-—The landlord, the errant driver and yourself. Before the meeting, brainstorm for possible logistical or procedural solutions that might be agreed to by all parties. I know it's hard to do but try to present it in a non-confrontation and solution oriented way and appeal to their better nature.

If that fails, abandon diplomacy and nuke them.

[Question Liberal Authority]

Is it possible to pour some concrete somewhere so that the giant pile of rock and mud isn’t created in the first place?

[equalitybeforethelaw]

Well a potato in the muffler doesn’t really damage the vehicle, it just stops it from running. Usually somewhere in traffic. Be sure to carve a smiley face on it so he knows it was done in jest. If that doesn’t work, just shoot him.

[kbennkc]

You have eliminated all the fun ways.

Pour some concrete. Perhaps a do it yourself project with tenant labor and landlord buying the material. It is not as hard as it looks and it is a job you will get a lot of volunteers asking only to sign the work.

[mnehring]

If I am visualizing this correctly, why not remove the gravel all together and replace it with something like a railroad tie cut at a 45degree angle to make a ramp that is easily removed as necessary. Railroad ties are good to use for this because they are cheap, already treated against rot and insects, easily cut, and virtually indestructible for something like a car driving over it.

[dblshot]

You can build a frame or just build a dirt damn, pour quickcrete mix in, add water then pour gravel into the mix. when it hardens up it will hold the gravel in place. If you really want strength add some rebar, How come you can’t ask your neighbor to avoid the gravel for you?

[SW6906]

I would invest ~$40 (guessing here) in redimix concrete, 1X4 wood for framing and some stakes and pour a ramp where you've been putting the gravel. It could be done in less than a day and quite cheaply. I've hand-mixed and poured 20' of walkway in a day before.

You might even be able to get the landlord to foot the cost for your improvement to his property.

[Mamzelle]

Think seriously about mixing your own concrete--get help from Home Depot. The mix is cheap, the only thing hard is finding a tub to mix it in. They have bussing tubs at Sam's that might work, and a shovel and hoe. Investment something like $50 and an afternoon of time. Do it when your sketchy guy is gone for a while so there is time to dry.

And tell your landlord/lady about the guy's sketchiness and the loitering and drinking.

[mnehring]

Regarding the previous idea. I just checked Lowes.com and here, a 8’ railroad tie only costs $11 and Lowes will make two cuts for free (one for the length, one for the slope).

[camle]

if the alley is private you can post it, and then have him charged with trespass if he uses it. if it is public, then there’s little you can legally do.

[RavenATB]

Simple...have the curb ground down so you don’t have to deal with the incline.

[Marylander]

Buy some gravel or buy some cement and fix the driveway. Don’t expect anyone to come to your aid just because you are in the right.