^^^ I was thinking about that just last night and was going to post it here now the fact they even had *sacred* chickens is enough to make me laugh out loud.
On Roman superstition during the Punic wars Rome on more than one occasion buried Gauls and Greeks alive in an attempt to pacify the Gods or to avert catastophe according to the Syballine books which Rome consulted just before the Gallic invasion in 226bc is stated Rome "must twice be held by a foreign enemy". So a couple of Gauls and Greeks were swiftly gathered up and buried alive, thankfully the Romans were realistic at the same time they raised an army and prepared for war.
Also religious practices had to be performed with meticulous detail according to Plutarch two priests from noble families were deprived of their offices when during such ceremony one apparently failed to present the entrails of sacrificial victim properly and the other because his peaked cap fell off during the ceremony. No doubt assuming a minor detail would upset the Gods and Rome would suffer.
Another example which could of been extremely costly for Rome, was I think during the Gallic wars between the 1st and 2nd Punic war, the guys who read bird signs believed that the omens given were bad ones. The Senate hastily sent a letter ordering its consuls Gaius Flaminius and Furius to return to Rome immediately and abort their expedition against the Insubres. Flaminius refused to open the letter no doubt expecting what was inside and began his campaign. Even when he returned to Rome laden with booty the Roman people refused to meet him and he was only after much argument I expect, given his triumph but he and Furius were afterwards forced to renounce their Consulships.
To quote Plutarch in summing the Romans up in this;
"Such were the scruples of the Romans in referring all their affairs to the Will of the Gods, nor would they tolerate the smallest oversight in the observation of omens and traditional rites, even if the omission were followed by the most brilliant success. In short they regarded as more important for the safety of the state that their magistrates should honour religious observances then that they should defeat their enemies"
With such an obsession over omens and bird signs and sacred chickens of all things its almost a mystery how the hell Rome survived this period