Places that can cover an ambulance bill? What happens if I don't pay?

TL;DR: I don't even know what I'm asking.

I got attacked on my way to my room. It was from a dude I used to talk to back when we were trying to find a homeless shelter together. I think he was on drugs and attacked me when he realized I wouldn't give him money.

He got me in the shoulder and lower abdomen but thankfully my prosthetic is perfectly fine and the cops literally saw the entire thing unfold so realistically I should be dead but I was able to receive help quickly.

I haven't started my new job yet so I currently don't have an income. $45 is impossible for me to pay right now. Thank you to the Toronto Police.

Unrelated but are we actually paying European level taxes for substandard service or is that a myth?