Restaurant Incident near Rua do Campo

A funny incident happened to me when I had dinner in a local diner by Rua do Campo. I ordered my set meal which included a iced lemon tea. When the waitress came by, she gave an iced milk tea by mistake. I told the waitress that I wanted an iced lemon tea which I had ordered. When she came back, the glass still looked like an iced milk tea. The waitress looked puzzled, and replied, "Yes, it is an iced lemon tea. Look at it". I looked at it, and lo and behold, she added a few slices into the iced milk tea. At this moment, I stared at her and said, "This is not iced lemon tea...." The table behind me started to cry out with laughter. Another waitress nearby scolded her and told her to make a "genuine" iced lemon tea. Of all my years in Asia, I've never had an iced lemon tea made up of an iced milk tea with lemon. My colleague chuckled, "You do not want a drink that will make you go into a hospital the next day!". Hmmm....