gistfile1.cs

public class Compare_To_VB_Object_Weirdness
{
    [Test]
    public void Something()
    {
        var someObject = new Object();
        someObject = new DoStuff();

        //This does not compile, as expected
        int result = someObject.GiveMeAnInteger();
        result.ShouldEqual(1);
    }
}

public class DoStuff
{
    public int GiveMeAnInteger()
    {
        return 1;
    }
}