Barney: Well, what an interesting turn of events. It looks like I'm going to win.
Ted: What do you mean, win? You couldn't even talk to her. You tried, you got slapped.
Barney: That's what you think happened.
[flashback to Barney walking over to Stacy in MacLaren's:]
Ted: OK, great, rule number one no eye patches or props of any...
Barney: [to Stacy] Here's the deal. My friend just got dumped so he's a little shy but he'd love to buy you a drink and get to know you. The problem is he thinks a pretty girl like you won't go for a guy like him. So would you slap me across the face so he could see you're not into guys who feed you lines? What do you say? For my friend?
Stacy: You are so sweet. [slaps Barney]
[present:]
Barney: So now, whatever nice things Ted does for her, in her mind, I'm the guy who's even nicer than him.
Ted: So you never slept with her?
Barney: Not even at all.
Marshall: Wow, that's good.