Explanation: Romans were inordinately fond of a kind of fermented fish sauce they called garum. Like wine, it had low-quality varieties, which, also like low-quality wine, were considered the essential part of even a slave's rations; and high-quality varieties, which could cost a year's wages for a common laborer for a single container! The Romans put their fermented fish sauce in everything - on their bread, in their porridge, on their salads, even in their wine! De gustibus non disputandem est - there's no accounting for taste!