The smart blonde joke.
Eddo was boarding a flight from west to east, and hoping for someone to chat with. Low and behold, a gorgeous blonde was already seated when he approached. She was reading a book, and as Eddo adjusted his seatbelt, he eyed the title of the book. Something about nuclear physics.
Eddo cleared his throat a couple of times, to no avail, then tried the direct approach;
"Eerrrm, I've heard that these long flights seem to go a lot quicker if your strike up a conversation with the person sitting next to you." says Eddo.
The blonde rolled her eyes, closed her book on her thumb, and said,"So, what would you like to talk about?"
Eddo looked around for a spell, and ventured, "How about nuclear physics?"
Blondie said,"Okay, but first up, how about you answer a rather simple question that's been on my mind for a while? There's these three animals, a goat, a horse, and a cow. All three eat grass, but a goat ***** out these hard little pebbles, a horse drops these muffin-shaped soft turds, and a cow drops these mushy flat pancakes. Why do you think there is such a difference between the three animal faeces, when they all eat grass?"
Eddo looks around the plane cabin for a short while, shrugs non-committally, and says," I really have no idea."
The blonde says,"Well, what makes you think you're qualified to talk about nuclear physics, when you don't know sh t?"