Here's a story that could put you off calamari for a while. According to a scientific paper from the Journal of Parasitology, a 63-year-old Korean woman "experienced severe pain in her oral cavity immediately after eating a portion of parboiled squid along with its internal organs." She spat out the food in her mouth, but still had a "pricking and foreign-body sensation" in her oral cavity. When she went to the hospital, they removed a dozen "small, white spindle-shaped, bug-like organisms stuck in the mucous membrane of the tongue, cheek, and gingiva."
Yes, the dead squid's spermatophores were still active, and they'd inseminated the woman's mouth.