Pernod. Or anything Aniseed for that matter. Went a bid mad with a bottle or 2 one night many years back, ended up with head in the toilet through the night barfing up with that rank smell of Aniseed. That's it now, any smell of it makes my stomach turn.
Sunny Delight, how people use to consume that is beyond me.
Pepsi Max gives me rotten headaches.