Welcome, welcome, welcome to Last Week Tonight! I’m John Oliver. Thank you so much for joining us! Tonight, we're going to talk about something that's as common in Montreal as poutine and potholes. That's right — rats! Montreal’s very own uninvited, unwelcome, and yet oddly resilient urban roommates. Now, if you live in Montreal, you’ve probably noticed a few things: Everyone insists on explaining the difference between St. Viateur and Fairmount bagels. Every street seems to be perpetually...