Is there an (android) app that you can use that will give you a free local (Toronto) phone number?
The problem with any of those apps, should they exist, is that there's still an electronic record of your usage. You sign up for that number with your phone.
Now, if this is a "keep everything away from friends and family" hobby phone, no big deal. Unless you go through a divorce and there is a discovery phase where they subpoena your phone's full records and dig into your apps and such, you're fine. If you're trying to keep from LE in the event things get more legally dangerous in this hobby... get a hobby phone. Pay the extra ~$30/month and maintain security. And pay with cash.