I’ve got 2 model 37 Ithaca’s, ones the standard 6 shot riot model and the other was just a lucky find I picked up back in the late 70’s. It’s a 20 inch US 8 shot that was issued to a Navy Seal team.
Keep a couple of thirty round mags loaded, one with green tip piercing rounds and the other with hollow points:
And always have a 'handy':