Now she barrels through it at great speed, as if she is trying to out run her own shadow.
There are times when she still takes it slowly, nudging at a corner of it then slithering through like a snake. At those times, the door swings gently back and forth until it stops.
When she barrels through, the door swings more wildly, more noisily and I think she does that on purpose, because it's often in the middle of the night when she is doing that frantic 'race around the house for no good reason' thing, or when I am quietly reading and unsuspecting.
Will we ever understand them?