When a character knowingly takes action that leads to them getting transformed, or increases the chance of getting transformed.

This includes:

• Using an item that causes a transformation while knowing its effect.
• Exposing themself to a substance or energy that causes transformation while knowing its effect.
• Interacting with a character with a contagious transformation while knowing their effect.
• Giving in to mind_control or corruption which causes them to transform themself.

Not to be confused with consensual_transformation, which only refers to characters that want to be transformed with a clear head and includes characters which do not contribute to their transformation.