Concern for the Bridge

An elephant was stepping onto a bridge from one side while a frog was entering from the other side.

“Wait, please, wait!” shouted the frog. However, the elephant could not hear him and began crossing the bridge.

The bridge shook under the elephant’s weight. When both the elephant and the frog met in the middle of the bridge, the frog exclaimed, “This is why I wanted you to wait until I crossed to the other side. Both of us should not be on the bridge at the same time; it might collapse!”