The last time I saw Roger at MSG was when Pink Floyd was touring "Animals" in '77.
Roger was strumming an acoustic section alone on stage when some knuckle head in the audience tossed an M-80 at him. I watched it sail over his head and explode behind him against the stage curtain.
The Waters temper is legendary and it was on full righteous display for a few minutes. The poor guy had the crap scared out of him. Some guy in the audience got the **** knocked out of him as the house lights went up.
Eventually the band came back and finished the set. Animals is still some of Water's best music with the Floyd imo.
Hopefully Gilmore and Mason join him for a show or two on this tour. That would be nice to see.