[Aw, did you think his notes would be that easy to find? Nice try. But he hums to himself in thought.]

The only problem I see is that we know the aliens have access to our memories. For all we know, they could easily fill our heads with false memories or control us to write something down so it doesn't look like we're actually being controlled during certain times. [He leans forward, arms draped loosely over his legs and fidgeting a little from his seat.] But I agree with you that Thursdays and Fridays are the most important. We keep track of what we're doing on those days and at those times, we should be able to prevent an alien invasion.

To take it a step further, we could read each other's logs too to confirm we remember where we were each night.