Getting Drunk Where It Counts

(I am looking for a specific bottle of wine for a customer. I am in a rush to find this bottle when a middle-aged customer comes up to me.

Customer: “Excuse me?”

Me: *still looking* “Yes?”

Customer: “If I drink four bottles of this, will I get drunk?”

Me: “Probably.” *I find the bottle and pick it up*

Customer: “Well, how much alcohol is in one of these?”

Me: “I think it varies by brand. Um, this brand here has [percentage] of alcohol.”

Customer: “Hmm… [percentage] times four… that will probably get me drunk.”