One of the many things I have learned in my illustrious career is to assume nothing. It is poison to development and open collaboration. Question and gather facts instead. That enables one to make decisions rather than simply passing judgement.
A colleague continually ignoring statements in favor of her own assumptions about process, procedure, and standard is dangerous to business continuity at best. It is toxic to collaboration.
As regards the above image. It helps to listen to the answers too.
What happens when you make an assumption?