This is a case of pretend play, also known as imaginative play or creative play. Usually common with little children, In such a play they create a world of fantasy and act or talk like it is a real life scenario. This children act like the object or situation is real. And they engage in role plays to act out a former experience or something that interests them.
The answer is 25 more times, trench foot which can start to happen when the foot is exposed to a temperature of just 60 degrees fahrenheit in the water.