not really a common food but,
i remember when i was younger,some of my relatives went fishing and bought back some sort of sea snail thingy and my mum lied to me about what it was and told me it was some sort of of giant prawn, cause it looked exactly like a prawn - same colour and shape when it was cooked, so i ate kept on eating it, thinking it was a prawn.
At around 5am i woke up with HUGE bumps and dots all over me, turns out i had a bloody allergic reaction == "
from that day onwards i have avoided eating weird looking shellfish that are caught by relatives