For me: 30 years ago, sure. We used to do Friday game nights after work, fairly often these went until 9 am Saturday (Battletech, D&D, Shadowrun, etc.).
Now, no way, I'd be punchy by 5 or 6, and have to sleep the rest of the day.
I know I shouldn't fire again on already broken and DM units to try for the double-break/elimination, but I do it anyway. It seems like they always roll a 1,1, and the result is usually a Hero/BH/Berserk, thereby putting the thorn right back in my a$$. Or I generate their sniper, or malf my weapons. Too many bad things can happen to risk it in such cavalier fashion. Hey, I'm getting better at it though, at least I quit doing it to those who would be forced to surrender in the RtPh anyway.
Two exceptions unless they're due to surrender: top shelf US and SS full squads with a decent leader in the direction of their rout path. In rally bonus terrain, even their DM brokies will come back with a '5/6', on a '6/7' with a -1 leader. Letting them slink away to lick their wounds has come back to haunt me too many times.