Complex Jokes

I have an inferiority complex but it's not a very good one.
What's the difference between a cat and a complex sentence?
A cat has claws at the end of its paws and a complex sentence has a pause at the end of its clause.
I’ve got a phobia of over-engineered buildings.
It’s a complex complex complex.
What did the Endoplasmic Reticulum say to the Golgi. I like your body, and the Golgi said it's complex.