Descriptive responses from methods. Rather than returning null return an Atom or a Result<T>

Atom.cs

public enum Atom
{
	OK, Unauthorized, NotFound, Forbidden
}

Result.cs

public class Result<T>
{
	readonly Atom _atom;
	readonly T _obj;

	public Result(Atom atom, T obj)
	{
		_atom = atom;
		_obj = obj;
	}

	public Atom Atom { get { return _atom; } }
	public T Data { get { return _obj; } }
}