Can you mark XUnit tests as Explicit?

Jimmy Bogard solved this with a nice RunnableInDebugOnlyAttribute. See this blog post: Run tests explicitly in xUnit.net

public class RunnableInDebugOnlyAttribute : FactAttribute
{
    public RunnableInDebugOnlyAttribute()
    {
        if (!Debugger.IsAttached)
        {
            Skip = "Only running in interactive mode.";
        }
    }
}