Board Thread:Suggestions forum/@comment-27991709-20160801171429/@comment-25959378-20160801203425

An interesting excerpt from Wikipedia: ===Water, sand and other heated missiles[ edit] === Hot oil was considerably less common than boiling water or heated sand, which were cheap and extremely effective; even "dust from the street" could be used. These would penetrate armour and cause terrible burns.[70]  Sand, especially, could work its way through very small gaps in armour.[21]  The Phoenicians at the Siege of Tyre (332 BC) dropped burning sand down on the attacking Greeks, which got in behind the armour and burned the flesh.[76] Such heated missiles have also been used in mining situations; the 1st century Roman writer Vitruvius describes a counter-mine dug above the attackers' gallery by defenders at the siege of Apollonia. Piercing the floor between the mines, the Apollonian defenders poured down boiling water, hot sand and hot pitch onto the heads of their enemy.[77]  Other mixtures were more innovative; the defenders at Chester in 918 boiled a mixture of water and ale in copper tubs and poured it over the Viking besiegers, causing their skin to peel off.[78]

When Frederick I Babarossa besieged Crema, Italy in the 12th century, the defenders threw red-hot iron objects down on them.[78