Lunch as usual

As the clock strikes one (must have been quite some time since someone said that in the current digital age), everybody digs into their bags and takes out their lunch boxes. Everyone (all desis) queues up for the 4 microwave ovens. My gang efficiently blocks the biggest table in the canteen in order to accommodate as many of us as it can.

B had got a boxful of chopped raw vegetable munchies... cabbage, cucumber, carrots and all that healthy stuff.

R: What is all this healthy food about?
B: Balanced diet. Health. Vitamins.
R: Vitamins? Drink beer if you want vitamins.
B: This box here is full of vitamin A and C.
R: A bottle of beer is full of the same. Research proves.
B: Carrots have Vitamin A; good for the eyes. Beer is good for a beer belly.
R: How do you know?
B: Have you seen rabbits wearing specs? You have a beer belly, though.
R: But you have specs, don't you?
B: I am not a rabbit.
R: I am a human, I drink beer and I do NOT have specs. Hence, proved that carrots are good for the rabbit's eyes and beer is good for human eyes.