Final answer:
Lena's act of sharing her HBO Go subscription details with friends is termed as 'consumer misbehavior'. This practice violates streaming service policies and can negatively impact content creation and pricing.
Step-by-step explanation:
Lena sharing her family's HBO Go subscription with her friends, which goes against the terms of service agreed upon when the subscription was purchased, is an example of consumer misbehavior. While some might view this practice as a harmless way to enjoy more content without additional costs, the entertainment industry and streaming services like HBO Go see it as a violation of their policies.
These actions can lead to increased prices for consumers since they undermine the subscription-based model whereby services are funded and content is created.