Again, it's back to inventory. I think you're putting too much importance on the ability of inventory to solve all problems. It will only solve the problem for the duration that you have the inventory. That may work at times; it may not work at other times.
In my experience, I was in one situation in my total career where there was a supply situation in Ontario. There was maybe anecdotal evidence of run-outs by customers, but I don't think consumers didn't get the product they needed; they actually got the product they needed, and I think the industry has done a very good job.
As to an earlier question about Quebec, with one refiner, I think the industry has rationalized the infrastructure, which has lowered the cost to the consumer, because the cost to the industry has gone down.
So if you want to add cost to the industry and see prices go up, mandate inventories.