When one of my cousins got married last year, our aunt said to her "Is your dress second hand, Heidi, only it looks a bit grubby to me round the bottom of the skirt?"
Another cousin, with older husband, just found out she is pregnant and my mother said to her "Oh what a shame your husband won't be alive to see the baby grow up."
My mother to her sister, whose husband is seriously ill: "Oh you'll find out soon enough what it's like to be a widow."
Uncle to his sister: "You're too ugly to be a Smith. Mum must have had an affair."
Uncle to me, having not seen me for a few years: "I see you haven't got any thinner or are you having another baby?"
Aunt to cousin, pregnant with her second: "Well let's hope this one's not ginger with those dreadful white eyelashes." (ie like her first!)
This is the tip of the iceberg!