originally posted by Aemilius Paulus
Is having disloyal general's that bad?
Not usually, but I have occasionally had generals bribed, usually by the Ptolemies, and usually after 220 BC (when even the gimped AI can build something resembling an economy, but only with a "naturally rich" faction like the Ptolemies). I've only seen it on difficulty levels above medium, so only worry about it if you play H or VH like most people that post here.
When the Ptolemies start spamming diplomats, that's usually a good indication that they are looking to spend some excess cash, and they seem to favor bribery attempts.