Most things normal people found bizarre was, in a word, normal to Lord Voldemort. Corruption was one of his many hobbies, second in enjoyment only to his pursuit of a certain "Boy-who-lived" Decay was nothing terribly new, and of course killing was a specialty. As for Sadism... One word... TOMB STONE!
But even the grand have their mistakes, and one day, whilst making a potion for a nasty chicken infestation (Lucius begs, please don't ask) he accidentally took a drink. (Yes, even snaky-overlords have their blonde moments.) and noticed his clothes were becoming larger... He was slipping thorough his neckline. When it dawned on him that chicken infestation (again, for the love of Lucius, don't ask) potions make the offending fowl an egg...
Voldemort would have laughed had it not been happening to him...
(A/N: Whoever pointed out that its pathetic to miss spell Voldemort shoudl try working w/ a spell checker... its not as easy as it looks.)