Oh my word did this thread make my day. I have had all this happen to me. I drop my bobbin and my sewing partner, my cat, immediately plays with it and there is thread all over the sewing room.
The worst thing that ever happened was I when I was cutting out fabric for a class I was taking the next day, way too late at night, and sliced the side of my finger off. My DH went down to Harbor Freight the next day and bought me glass suction handles for all my rulers. Now my fingers get nowhere near the edge of the ruler.