I'll probably try to make myself stop at no more then five paragraphs.
Yeah, have had long ones too; One of my old Storyteller's in Vampire made the mistake of saying it could be as long as I wanted.
He got ten pages worth from MS Word in 10 type size. *sighs* good times...
I once offered a challenge before running a vmpire game, and said that their characters could be a century old for every single spaced, 10 pt page of history they turned in to me. Real stuff - no fluff,, had to be readable and decently written. Result: five characters that were less than a century old, and a six that began a seventy page history with 'In Ancient Sumeria..." She'd written it //just// to see if I'd hold up my end of the deal, and even made a concept that fit fairly well into the group - an ancient Methuselah (VTM) who'd recently risen from torpor and was feigning being a neonate while she figured out these 'newfangled' politics of Camarilla and Sabbat, and using the party to take over the city. She'd been a secretive behind the scenes type that simply directly challenging anyone they met was anathema to her.
Favorite scene of the game: The party mixes it up with a Glass Walker sept in the city. One of the characters, a Brujah who enjoyed pushing buttons, pisses off the room ful of weres, and a fight breaks out. The other party members go down, and the ahroun drops six rage and then charges, preparing to rip her apart. The player uses the tier six presence power on - Love, I think - and he basically spends his six actions fawning overe her, snapped out of Crinos form, and she systematically fends off every attack and runs the lot of them out of rage. She tells them to leave the party alone, dump them out in an alley with a 'and let that be a lesson to you' warning. She smudges her hair, bloodies her lip, and completely plays off having been beaten down like the rest of them.