Ha ha! Knew I forgot something.
I'm quilting along .. a large meander ... zooming away. Every time I stop to adjust my quilt, the quilt nudges something plastic on the table. I hear the rattle each time and ignore it. Finally after the 5th or 6th time I thought "what the heck am I hitting???".
The bobbin cover!!
Darn I knew I forgot to do something when I changed the bobbin.