Finished Dog Walk .... But Broke an IK/FK Handle!

Last night I finished all of the dog walking scenes ... but then an IK handle got broken! I lost quite a lot as when I opened the last saved file, not all of the dog model was there! How annoying! this was late at night so I decided to pack up for the night as I felt very frustrated. I thought that I would get up very early in the morning to redo this and start getting on with my work! I got up at 7 (very early for me, I'm a late night person) and got the walk back and got quite a lot of my work finished.