Stealth Pilot wrote:
.....
when you have the realisation that a crucible is letting go, you place
it in the sand tray, or you pour it out in the sand tray.
that tray is the only dry safe place that you can dump the molten
metal....
Stealth pilot

You might think that a puddle of lead on the concrete garage floor could
hardly do much harm. After a concrete chip whistles past your ear, you
think again.

Brian W