Answer:
Consumer's mood
Explanation:
Consumer's mood can be described as the surprising effect that occurs in the acts of a person having an enhanced good or bad mood. According to psychology, a person tends to over-step some of the boundaries he has set up for himself if he is having a good or a bad mood.
In the situation mentioned in the question, John overstepped his comfort zone and spent much more than he usually does. This is an example of consumer's mood.