As a child, Wolverine was quite a fussy and allergy prone boy from a very privileged family. Everything changed for James Howlett when his mutation first appeared however, and he would slowly become the man known as Logan over a number of years (it was implied that his healing factor wiped his memory after that trauma which is why he retained little of his old personality). During Whedon's X-Men run, he had the psychic Emma Frost use her powers to revert Wolverine to his former self. This hilariously led to him screaming at the sight of his own claws, running in terror from Beast, and talking in a frightfully posh manner.