If it were mine I would tempted to stock it with fish and advertise the pond as a fish pond (if it's big enough, and charge Anglers an admittance fee, a parking fee, and sell them bait from a shack (with a w2 part timer working in it).Ultimately you will have to figure out it's highest and best use--if the other ideas fall through the floor, what about a 7-11 (or a private 7-11 clone), or a McDonalds, or a big truck stop--but if those kind of things fall through, what then (???) 

Local code won't allow an air admittance valve under the sink.

If you built a kitchen down in the basement, you added in a new branch drain tying into the main stack, and a new vent (or air-admittance valve).

You attempting to be a good person or provide a nice gesture may be seen in court as an admittance of guilt.

While adding the trap you might want to add one of these, too. http://m.homedepot.com/p/Oatey-1-1-2-in-PVC-6-DFU-Air-Admittance-Valve-39230/205395535

The fact that all of my few posts solely ask questions should be my admittance that I am indeed not an expert, and far, far from it.Points 1 - 5 are entirely true statements.

You will see a similar pattern with a top California public high school, having the highest % of admittance to UCLA and Berkeley.

It's kind of like trying to gain admittance to an exclusive club. 

I have documented conversations of warning him and his admittance to smoking indoors. 

A reasoned discourse of the proper policy and legal admittance of those that will benefit us the most is the sensible thing to do.