Well, I was both on vacation and with a friend... but I voted "with a friend."
It was August of 2007 - school was still out for the summer and my friend, his parents, and I took a trip to Indianapolis. My friend and his dad are amazing chefs so they, of course, had to stop at Wild Oats... along with other fresh food markets.
I eventually became bored with them arguing over which of the 27 different cheeses would be best on a hamburger and took a walk. I came to the tea aile and was like "wait, there is more than Lipton?"
After my friend found me in the aile, he explained the four kinds and the difference between loose and bagged.
I've been learning everything I can about tea ever since.