Vigilance beans.

Some while back, I was running a pug CoS heroic. We were outside the city waiting for the event to start, Arthas having a lover's tiff with his paladin groom, and I get a whisper from the DK in the group. "Can you vigilance me please mate?" I was in a playful mood and so I said...

"Sorry man, nearly out of vigilance beans."
"What?"
"Vigilance beans. Normally I keep a big stack of them, but forgot about them. I only have a few left now. I hate reagents, such a bother."

He's quiet for a moment, then opens trade with me and I see him giving me 2G.
"Here, get some more after, can you use one on me now?"

I nearly pissed myself laughing. I cancelled trade and told him there's no such thing as vigilance beans, that I was only joking. But my god, I really had a huge wheeze at that. Really, really wish I had taken a screenie too, it was brilliant.

haha-classic-i might have to use that sometime

That's awesome. I might have to try it myself.

I ran without vigilance in my old 5man days. I always found I had it on the wrong A$$h^Wcherished group member.

I always threw them that makes you smaller daily cooking reward stuff.
Worked the same!