Now that we’re parents, we can officially criticize other parents — on legitimate grounds — for their poor parenting decisions and not be told, “Well, wait until YOU are a parent!”

For the sake of other passengers’ olfactory sanity, and as a gift to humanity in general, I can think of little or no reason that you should ever (EVER!!!) change your child’s POOPY diaper using the middle seat of your row.

Airlines went through all that hassle to install changing tables in at least one on-board lavatory for a reason. Deciding to wing it in your own seat is about as pleasant to the rest of us (even the ones with kids!) as if you yourself dropped your drawers and used the barf bag to do your own business out in the open because you’re too freakin’ lazy to go to the lavatory TWO ROWS BEHIND YOU.

Oi. Thank goodness for Rosanna’s French Vanilla Softlips chapstick, which make a great smelling salt in such cases.