If a fly or a bee comes into the house and one points it back toward the window or door through which  it entered, most of the time,  it exits.  I have experienced this over and over again across the twenty years of living on the west coast.  Others have said the same thing.  I think it has to do with the temperate climate and open doors and windows and only occasional screens;  insects learn "oops" and go back out.  

This bee must have come in just before I was going out and, unfortunately,  closed the window.

I did not notice it here, on the fibre, on the spindle, until I picked up the spindle intending to spin.

At first I thought it a spot of yellow that I had somehow spun.  But no, it was the pollen.  And then I saw the bee.

The bee was dead.  It was too late to offer it an open window.

That it settled on the spun fleece both saddens and comforts me.