Good point. And -- interesting little ancillary "fun factoid," here: did you know that the late Hunter S. Thompson took "credit" in his political writings, years after the fact, for Muskie's untimely teary meltdown?
Thompson's claim was (and I'm doing this solely from memory right now, so let's all hope I'm not screwing things up too badly) that some sort of mood-altering (*kaff*kaff*) "medicine" he'd been toting around at the time had "accidentally" kinda somehow found its way into Muskie's coffee, an hour or so prior to said gent's next (and soon to be famous) scheduled stump speech.
Now, given Thompson's not-infrequent (albeit still darkly entertaining!) tendencies towards... ummmmmm... well... "embroidery," let's say, in much of his work, this really is the sort of claim requiring several doduble handfuls of salt as a chaser, plainly... but: HMMMMMMMMM. ;)
Ah, but Thompson was also well known for his “recreational” drug use, so that particular story may just be true. I read “Fear and Loathing on the Campaign Trail ‘72” many moons ago, and that is just the kind of thing that HST might try.