That is
seriously funny Kevin!
ovim, fantastic results w/that @ ISO1600. Which body do you have? Was it wide open or stopped down a bit? As you may have read in my OP of this thread if you saw it, I'm handicapped by my one dog who's insanely & irrationally frightened of the camera because she equates it to lightning & thunder.
To the participants, please pardon my breaking of my posting guidelines set forth for this thread in my OP. But I have a few I want to use as an example in this reply so hope you will look past it this one time.
Joe, I'd recommend following ovim's lead. Pump-up the ISO and open-up the aperture [using Av or M mode]; and get close! Getting close w/a wide aperture results in a nice soft mushy OOF area; of course you have a really narrow DOF to contend with as well, but that's part of the art.
You might want to pick up an old MF Pentax-A 50mm f/1.4. So versatile and such and incredible performer. A bit better than the A 50/1.7 and much better than an A 50/2. This taken w/my 50mm f/1.4 stopped down a tad @ f/2.0, ISO400:
Of course, I see you have one excellent lens that would suit just fine; the DA* 16-50/2.8. Using f/2.8 or just a few fractions of a stop down can yield excellent results as well. This one was taken w/my Tamron 28-75mm f/2.8, wide open @ f/2.8, ISO1600:
Even f/3.2 will do. This was my Voiglander 125mm f/2.5 used @ f/3.2, ISO400:
Of course I should add, shooting in RAW and post processing in something like Lightroom or other, offers you a lot more flexibility in getting the shot with exposure a bit off [underexposed], and making it right w/o amplifying noise, getting the perfect WB, making the photo pop vivid color, as well as getting rid of high ISO noise while maintaining detail much better than it can in the camera.