> You might want to check on the relevant laws where you live, but in most countries there is something in the legal system called Duty of Care which deals with first aid responders to an accident. Basically, it sets out what action the average person can be expected to take responsibility for, if they help an accident victim. As you are untrained or at a basic first-aid-course level, for example, you are legally expected to be able to take far less responsibility for the consequences of your actions than, say, a doctor or paramedic who responded to the same accident.
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> What it boils down to is that if an untrained person helps at an accident scene, they cannot be sued for failing to save the victim, unless they did something which the average untrained person might be reasonably expected to KNOW was utterly stupid and wrong. ("Hey, your intestines are poking out! I'll just pull them the rest of the way out to tidy up the hole!") If, however, you respond to an accident and have medical training, you can reasonably be expected to perform to a skill level consistent with your training, and there might be grounds for legal action if you do not.

I don't know the specific laws in Canada on this matter, but I'm pretty sure that I couldn't be found at fault for anything I did. Canada is not an especially litigous state to begin with, and I'm sure there is no way a reasonable case could be built against me, especially when I know that the paramedics let me keep doing what I was doing when they arrived -- a pretty good testament to the quality of my best efforts, I would think. Still, I want to know exactly what's going on, because if somebody IS out to get me for some reason, I sure don't want to help them so they can get me into court and waste my time.