At the airport with recently exploded baby picking up Mom. Walk into women's bathroom and wait for the mom in front of me to finish using the changing table and she sets the dirty diaper down, leaves a poop smear, tries to wipe it with the diaper, fails, leaves the smear on the table. I just stood there gawking and finally asked her 'Are you going to leave it like that?!' She said 'I've seen worse' and walked out.