Ok, I get that Watertown doesn't require people to shovel the sidewalk in front of their homes - but that doesn't mean it shouldn't be done. It blows my mind that a person can get a $100 fine for blocking a handicapped ramp with their car but it's perfectly OK to block the ramp with snow. not to mention it's the neighborly thing to do.
It gets dark at 4:30 in the afternoon. By not clearing your sidewalk, you are forcing people to walk in the streets - in the dark.