Interesting points Lorna! And yes, task prioritization can be tricky. Your example of the student making the phone gesture while you were teaching is perfect. Clearly you needed to keep teaching. But there are other situations in which priority is not as clear. In situations like these, I like to think about the consequences or outcomes of not completing each task. For example, what would be the consequence of not completing your lecture? How does that compare with the consequence of not calling a student back right away? When we think in terms of outcomes and consequences, we can often come to conclusions about task priority.