Surely the Dark Arts aren't for the squeamish or the Faint of Heart. The ever blurring line between life and Death is one that One does not tread upon lightly.
However, the benefits are great. Knowledge from beyond the grave can be a great boon to all humanity.
...Also, never having to cry over the loss of a beloved pet isn't a bad perk either, just sayin'.
Order a size up if not sure, the Tees might run a smidgen small.