One of Caligula's favorite
sayings was said to be "
Oderint dum metuant", which can be translated as "Let them
hate, so long as they
fear." It was a quote from
Lucius Accius'
Atreus play.
While this might have been a viable foreign policy, he brushed Cassius Chaerea, an officer in the Praetorian Guard, the wrong way when he called him effeminate before the court. Those conspiring against Caligula used this incident to convince Chaerea to assassinate him. Together with two other officers he murdered the emperor in his palace on January 24, 41 A.D.. The Praetorian Guard then "dispatched" Caligula's relatives.
So you might want to think twice before calling someone a girlyman.