For me, it's pickled pigs feet, floating in "fluid" in those glass jars in old time bars. Every time I see them, I dry heave.
They remind me of those animal fetuses in jars of formaldehyde back in school. The smell of formaldehyde used to make me retch..
Personal opinion is a good thing, and everyone is entitled to one. The hard part is separating informed opinion from someone who is just blowing hot air....