I had a similar experience with vodka when I was 18. I still get a weird reaction when I taste vodka.
I also had a similar experience with Burger King. I think I caught a virus while flying or passing through the airport, and when we got to the hotel a nearby Burger King was the only thing that was open that late. I was puking sick shortly after, and even though I don't think it was because of Burger King, my stomach still feels weird when I see a Burger King sign. I think this sort of association must be how our ancestors learned "do not eat those weird-looking berries".
-k