A bear walks into a bar in Banff and asks the bartender for a beer.
"Forget it!" says the bartender, we don't serve beer to bears in bars in Banff.
"Well, if you don't serve me a beer, I'll go over and eat that woman that sitting there", says the bear.
"Do what you will, we don't serve beer to bears in bars in Banff", says the bartender.
So, the bear wanders over to the table and promptly chows down on the poor woman who was sitting there. He finishes up and wanders back to the bartender.
"There! Now can I have a beer?"
"Nope, sorry. We don't serve beer to drug-addict bears in bars in Banff", replies the bartender.
"Drug addict?? What are you talking about?" says the bear.
"Well, don't you know that was a barbituate?"