I guessed this meant we had a bit of a wait before Old Faithful blew off more steam...
And so we waited. And waited. And waited.
And then Big Dude sent The Teenager to find Middle Dude and I to tell us that we weren't waiting any longer. But it took The Teen awhile to find us. So, by the time we were all reunited (we had split, because Dog Dude isn't allowed more than a certain distance from the parking lot), enough time had passed that Big Dude said we might as well wait for the show.
And so we waited a bit more. The Teen (and Littlest Dude) sighed and groaned and moaned and whined. And then we caved for the final time and turned to leave without seeing the spectacle. Old Faithful blew nearly the moment we turned to leave.
And so we stayed. ;-)
The Dudes all immediately declared: Not worth the wait.
They're a tough crowd to please, I tell ya.