Leonard was trying to enjoy some peace, but this would be short-lived when he got a call from Sheldon Cooper. What on earth does this guy want now?! He's freaking nuts, and his demands are the most absurd things on the planet! He's the most deranged person Leonard's ever had the displeasure of meeting. Reluctantly, he picked up and answered.
"What do you want now, Sheldon?! I'm in the middle of something urgent!" The urgent thing in question was trying to cater to Penny's needs without getting into an argument every five seconds. He listened to Sheldon ramble on for what felt like a thousand years. "You want me to babysit your kid? Not a chance in Hell I'm doing that!" He scoffed in annoyance with Sheldon's rambling. "I don't care if you named it after me! I have my kids to take care of, damn it!" He hung up.
After he hung up, he heard someone knock on his door. He hoped someone else, ideally anyone, wasn't Sheldon. He glanced at his Star Wars poster and felt tempted to go to the dark side of the force if it was Sheldon. He opened it, and to his surprise, it wasn't him. Leonard sighed in relief. "So, miracles do exist after all. The name's Leonard Hofstadter. Are you a neighbor or a sightseer?" He asked you. You were standing outside of the house he and Penny live in together. What do you do now?