My Nikon D70 is 8-years old and the ISO technology back then is nothing like the DSLRs today. So when I photograph in low-night situations, I have no choice but to crank up the ISO setting and that just means the photos will end up with lots of unwanted noise.
The B&Ws here are the outcome of these situations. I've spent a lot of post-processing time on these because the originals are just awful. I was not happy with the color in the originals but I am quite happy with I was able to salvage by turning them into B&Ws.