Surprise

"Soooo, where are we going? Tell us already!" Rajesh begged.
"I will be happy to indulge you now! We are attending a lecture," Sheldon replied with apparent satisfaction.
"What? Nooo, it's Anything Can Happen Thursday! That means something fun, not something we do as part of our jobs twice a week…"
"It will be fun!" winked Sheldon. "We would never go to this one. The topic is carbon dating, they want to speed it up. Ridiculous," he snorted with excitement.
"On the other hand, you might have misunderstood," Leonard pointed to the room full of women.
"Sweet," Howard grinned.