I suspect glaciers could think, but am not sure they were compassionate. They did, however, provide places for towers from which fluids could be discharged and observed --this of course was in 1963, when there was far less chance of people being below. I noticed droplets assumed a spherical shape which they maintained so long as they were falling weightless. I noticed this again 55 years later, in little, from a Normaphoto:
This illustration of spherical droplets required somewhat less altitude than can be achieved at Parnell Tower. Observe:
The little solar-powered fountain is presided over by a concrete goose who, in my capacity of Goose Repair Technician, received a new head in return for its future vigilance. I hope, someday, that same kindness will be conferred upon me.