Well said!

Having said that, I have heard this before, with one more stage added.

"...at which point one of the students steps forward, opens a Bud and proceeds to pour it in the container, obviously filling the gaps between the grains of sand.

The moral being, however tough life seems to sometimes get, when you've devoted time to your family and friends, worked hard, provided a home and security, then there is still always time to sit down and fit in a beer!"