Ppine,

You were posting while I was typing, so I'll illustrate one for being a mentally tough chicken.

When I was in Boy Scouts, each year we had a Klondike Derby. We made a dog sled and then dragged it around some trails. I was with a group that decided to cross the ice on a pond. It didn't look like a good idea to me, so I refused. I got the usual comments from the other kids.

Well, when they got in the middle of the pond, you could hear the rifle shots of the ice cracking. Fortunately it didn't break, but it could have. There weren't anymore comments about being a chicken after they got off the pond.

What was their motivation? To avoid some fatigue from pulling the sled around the pond on the trail.