Streetcar on Spadina

I had to run up to College and University at lunchtime the other day.  On my way there, I was waiting for the northbound Spadina streetcar to come by.  This one, heading southbound, caught my eye.  Those things get filthy on a winter day, don't they?  How'd you like the job of washing them on a regular basis?  Somebody's doing it, because there's no way that, on a day like this, something driving through the muck and slush that's all over those tracks is going to stay THAT clean for long.