I witnessed MSS (middle seat syndrome) on an AC flight from SFO to YYZ yesterday.Many of us with status in the Y cabin were waiting for u/g that did not appear.As we board ,all those who boarded ahead of us had used up all the overhead bin space.Getting all those male SE/E and Prestige into the 1st 4 rows of Y (smaller pitch to boot) was hilarious to watch and hear.
One fella (middle seat) threatened to hit another fella (middle seat) who had brought on 3 carryons.The other threatened to charge him should he follow through on threat.
I wanted to comment(Mrs.acysb87 said sit down and mind your own business).
You all get the picture.

Good luck with Wilma. Good luck,period.