Don't be so hard on this woman, it was Mr. Bigglesworth.
I'm not sure that's actually as bad as a family I had next to me from Africa who's kid kept throwing shit out of the treats basket and then proceeded to scream like he'd seen Satan. Fast forward. Kid is now eating baby food and slopping it all over the place. Next...kid shit his diaper (no, this wasn't PJ next to me). Then, mother (middle seat) proceeds to change the freakin' diaper right there....pops the tray down, pulls off diapers, wipes ass, then is trying to do something with all of it and her mom (window seat) gets a bag and they throw it out. Nowhere were flight attendants to be seen, nowhere. Fucking diaper damn near ended up in my lap at one point. I was so fucking pissed off I actually thought of walking to first class and saying...you need to land this fucking plane now. No seats, packed, but changing shit from diaper right next to me is NOT EXCUSABLE.