text: what does body armor have to do with boiling water?   in the past, to construct armor leather was hardened by soaking it in boiling water.  see: http://www.daviddfriedman.com/medieval/articles/perfect_armor_improved.htm  http://www.dagorhir.com/howto/cbgryml.htm  the m1 steel combat helmet, a piece of body armor could also be used (and was) used for boiling water.   see:http://www.globalsecurity.org/military/systems/ground/m1-steel-pot.htm