@ThatDeborahGirl, Leonard didn't object to anything. He prevaricated, and then he regretted it. He could have said 'no', he could have said 'yes', he could have said 'when you or I, or we, have done x, y, or z then we'll be ready' but he didn't. The conversation moved onto disproving a negative before Sheldon…

0. Penny, realising that she had achieved nothing of value in her life so far, took action to commit to what little there was available to her.

Did no-one notice that Bryan Cranston was the director?
- sorry, wrong on this. Gotta stop mixing the two pot.