Snap Crackle Pop

This past Monday I started attending an exercise class for seniors.  Yes, I admit it.  I do fit in that category.  All went well on Monday and again on Wednesday until we came to one exercise.  We were spaced more than six feet apart so there shouldn't have been a problem, but when we started doing squats (and yes, we were allowed to hold on to the back of our chairs) I bent my usually cooperative knees and "snap, crackle, pop" my knees were popping with every flex.  I wasn't too worried until the people on either side - six feet away, mind you - started looking at me and snickering.  It didn't hurt but it did put me in the mood for cereal.