WTFWT - A Brewed Surprise

At the coffee shop, a chap walked in, Ordered a latte, wore a sly grin. With a carrot, he stirred, no spoon in sight, Perplexed, I stared, as my thoughts took flight. The buzzing barista continued her work, Same as the patrons, did not notice the quirk. In loud sounds of chat, my mind left to wander, A carrot in coffee? A concept to ponder! No others had noticed by time he had gone, And I said, "WTFWT, on this very dawn?" The insanity of sighting a veggie conductor, Beta carotene coffee? A caffeine constructor! Alas, I sipped my drink, a secret to declare, Not java but whiskey, the truth now laid bare. A twist in my brew, a profound virtuoso, Special ingredient that gives coffee its mojo. The buzz in the shop matched the buzz in my cup, Unraveled the mystery of the orange root foul-up. At end, the coffee shop's great unsurprise, Was due to my whiskey, not his carrot supplies!