Albert Einstein walks into a restaurant, and the waiter approaches him, saying, “Good evening, Professor Einstein. Your regular table is ready. The usual?”
Einstein nods and follows the waiter to his table. As he sits down, the waiter asks, “Can I get you something to drink?”
Einstein replies, “Yes, please. I’ll have a glass of water.”
The waiter smiles and says, “Still or sparkling, Professor?”
Einstein thinks for a moment and then says, “Ah, my apologies. I forgot. Make it still. Even geniuses have their ‘density’ moments!”
The waiter chuckles, “Density, Professor?”
Einstein grins, “Yes, you know, when you forget if water is still or sparkling. It happens to the best of us!”
