Abusing using to prioritize threads

Welcome to another chapter of "Abusing Using"! IDisposable has been used or abused (depending on who you ask) to create scopes/contexts of all sorts, from database testing to HTML generation to clipboard overriding. Here's another little (ab)use: thread priority setting, for all those background tasks that eat our CPUs:

public static class ThreadSettings {
    private class DisposableThreadPriority: IDisposable {
        private readonly ThreadPriority originalPriority;

        public DisposableThreadPriority(ThreadPriority p) {
            originalPriority = Thread.CurrentThread.Priority;
            Thread.CurrentThread.Priority = p;
        }

        public void Dispose() {
            Thread.CurrentThread.Priority = originalPriority;
        }
    }

    public static IDisposable LowestPriority {
        get {
            return new DisposableThreadPriority(ThreadPriority.Lowest);
        }
    }
}

I like to keep this in an interceptor so I can easily apply it to different components just by adding a couple of lines in my web.config:

public class LowPriorityInterceptor : IInterceptor {
    public void Intercept(IInvocation invocation) {
        using (ThreadSettings.LowestPriority) {
            invocation.Proceed();
        }
    }
}