I'm one of 3 children. Gems so far since I has DS 16 months ago include:
-"none of mine still woke in the night past 8 weeks"(helpful when ds was still a tiny 5lb at that point and was waking LOTS to feed)
-"none of mine had any problems when teething - not a murmur"(DS hasn't suffered much - just earlier waking and a touch of the runs - she told my aunt he's having a terrible time with them!)
-"none of mine had tantrums in public" (when DS cried in a coffee shop today when i wouldn't let him stir my coffee)
disclaimer - i love her, we get on well, she loves DS - these things just make me roll my eyes a little in disbelief!