When you're in a public bathroom and you and the person next to you both have to poop but both people refuse to make the first fart and initiate the pooping.
A situation whereby two people know each other quite well, but not well enough to feel comfortable to "add as friend" on Facebook.
Both are unwilling to request the friendship in fear of being rejected or being thought of as weird. However, both would happily accept the other's request.
Therefore both remain on the other's suggestion feed on the homepage, until one of them plucks up the courage to request.
Guy (sat at home on computer) : "I can't add her, I've only spoken to her twice!"
Girl (on iphone) : "Should I add him? Or will he think I'm a desperate hoe?"
*Two people are trying to walk through a doorway*
"After you."
"No, after you."
"No, no, no. I insist. After you."
Looks like they are stuck in a chivalrousstalemate.
When two or more people attempt to stall stall while in a public bathroom, resulting in many minutes of silence while all parties involved just sit quietly in their stalls.
After several minutes of complete silence I realized that I was stuck in a stallmate with the fellow next to me.