At different times, Kitty Norris addresses Luis Aguilar as "Mr. Aguilar" with two different pronunciations: the correct "AH-ghee-LAHR" and the incorrect "AH-gwi-LAHR". As a long-time family friend, she would know the distinction.
Luis and his son Al had a drinking contest to see who would be the first to pass out. Al drank wine until he passed out on the table, and had to be helped by two people to walk up the stairs, presumably to go to bed and sleep it off. But he was up walking around and talking normally - wide awake and alert - shortly afterward, when he should have been sleeping soundly under the influence of all the alcohol he drank.