If you're going to attempt to do this, make sure your PS/essay is read by multiple - meaning 5+ - people and get their feedback. Ideally these people should have some experience reading personal statements or otherwise know of medical admissions and not just be strong writers.
There's nothing inherently wrong with "hooks," but the problem is two-fold: 1) most people aren't strong writers and likely think their abilities are stronger than they are, and 2) most "hooks" aren't successfully executed and end up being nothing more than sources of cringing.
A boring but genuine and informative personal statement is fine. Not everything needs to start with a first-person account of some dramatic moment involving a patient and/or explosions. And if you're going to go that route, again, do yourself a favor and please, please, please have someone look over it.