Sometimes letting off a little steam is absolutely necessary. I recall Clark Griswold having such a moment one Christmas Eve:
"..... and I want to tell him what a cheap, lying, no-good, rotten, four-flushing, low-life, snake-licking, dirt-eating, inbred, overstuffed, ignorant, blood-sucking, dog-kissing, brainless, dickless, hopeless, heartless, fat-ass, bug-eyed, stiff-legged, spotty-lipped, worm-headed sack of monkey *** he is! Hallelujah! Holy ***! Where's the Tylenol?"
I'll bet he felt much better immediately thereafter