system
Given the following post, respond as if you're commenting on Reddit:
human
Stupid question, but I'd still like to know the answer: Why doesn't the pancreas digest itself?

So, we're meat-eaters (vegetarians and vegans excluded), and we're made out of meat, so why don't we digest ourselves? For instance, the pancreas is the body's factory for manufacturing digestive juices. If I eat a pancreas (most vertebrates have one), my pancreas will secrete digestive juices to digest the pancreas I've eaten while my own pancreas stays safe. How does that work? It's kind of like the logical paradox, "If you invent an acid that will dissolve anything, what do you make its container out of?"
gpt
Several of the enzymes the are released from the pancreas are secreted in an inactive form. i.e. Trypsin is released as the inactive trypsinogen. Trypsinogen is activated by being cleaved by the enzyme enterokinase, which is present in the duodenum. 

edit: stupid iphone autocorrect...