And since I'm talking about machine care - when did you last remove the throat plate to clean out all the lint? I'll never forget the time a student asked me where she could buy another little felt pad for under the throat plate. Her machine had gone so long without cleaning that she thought all that stuff was a felt pad that was supposed to be there!
Don't forget to treat your machine to a "spa day" once a year also if you sew regularly - that is several times a week. She deserves a good cleaning, oiling and a check of her tension and timing. She will be so much happier and so will you. Don't wait until she breaks down before getting her serviced - you need to care for your machine at least as well as you care for your car!
And now for the picture - I can see a bear staring to emerge , can't you?