Seahorse Radish, the "gnarliest stuff in the ocean" according to SpongeBob.
It was dropped into the toilet
Dried with old gym socks
Before the health inspector could take a bite out of it, he choked on a fly and slipped in condiments, smashing his head on the table and breaking the chair he was using, knocking him unconscious. The fly then flew out of his mouth. Seeing his unconscious body, SpongeBob and Mr. Krabs thought they had killed him. Upon seeing this, they attempted to bury him. It is unknown what happened to the patty. However, because the health inspector never really took a bite from the patty, it is unknown what could've happened to him if he did.