Oh boy. I haven't heard from my son or his dad in the past few hours (bet I can guess why) but I have an image in mind now ...
My son just flew into Indonesia from Philadelphia and got picked up at the airport by his dad, who lives on lantai 17 of a Jakarta apartment building. This being Jakarta, it's not really 17 floors up - no floor 4, 13, or 14, and I can't recall if they have a "ground floor" before the first floor or not - but by my count it's got to be a minimum of 11 flights of steps they'll have to climb.
Said son is now 21 and a delight in many ways, but has saddened his mother by the fact he's an absolute slug with respect to ever getting even minimal exercise; he flees in terror from organized sports [to be fair, I do too] but [unlike me - I run and lift weights] also hates individual forms of exercise like running, swimming, etc.
His dad is much better about such things, but I suspect has had several stair-climbing endeavors already in recent days (he definitely walked down all the steps when the big earthquake struck, and he may have had to walk downstairs to get a cab to the airport).
Anyway, I see the two of them, trudging pitifully all the way up to the apartment, where the last remnants of air-conditioned comfort may be dissipating ... I hope the windows open!