Here are some long jokes for you:

The Man and the Library
A man walked into a library and asked the librarian, "Do you have any books on Pavlov's dogs and Schrödinger's cat?"

The librarian replied, "It rings a bell, but I'm not sure if it's here or not."

The man laughed and said, "Well, that's a real paws-ibility!"

The librarian groaned and said, "You're a real cat-astrophe!"

The man smiled and said, "I guess we're just having a dog-gone good time!"

The librarian threw up her hands and said, "Okay, okay, you're a real comedian. But seriously, let me check the catalog."

After a few minutes, the librarian said, "Yes, we have a book on Pavlov's dogs and Schrödinger's cat. But it's in a superposition of both being on the shelf and not being on the shelf at the same time."

The man laughed and said, "Well, that's a real quantum leap!"

The librarian smiled and said, "You're a real particle-ular comedian!"

The man grinned and said