All of us who are of a certain age have had a "senior moment," whether you've called your child by the wrong name, returned from the supermarket without the one item you went out for in the first place, or complained that some kid is playing his music too loud. Regardless of your age, there's plenty to chortle over in Australian cartoonist Tim Whyatt's imagery, depicting the highs, lows, laughter and indignities of later life.