The context of the following conversation is Alex took the dog out.  They forgot to do it this morning.:
Alex says I just took my dog out. I had forgotten to do it this morning..
The friend responds I'm glad you remembered to do it now. Did he go in the house or anything?.
Alex responds Thankfully, no, he didn't go. And I'm sure he needed to go out for a while..
The friend responds Were you busy with something and just forgot?.
Alex responds Yeah, I started doing the laundry, and it just completely slipped my mind..
The friend responds I see, you just got distracted..