T-Rex: Sherlock Holmes, who was the world's greatest detective, decided one day that this meant he must be good at other things too!
T-Rex: Most other things!

T-Rex: ALL OTHER THINGS.

T-Rex: And so Sherlock began answering all SORTS of questions which he was absolutely unqualified to answer. And of course when those who had actual degrees in the subject matter disagreed, Sherlock dismissed 'em...
T-Rex: ...even when Sherlock had absolutely no experience or special knowledge in these fields at all!

Utahraptor: Wow, I used to like Sherlock but now he sounds like a real blowhard!
T-Rex: Yep!!

T-Rex: Sherlock noticed that nobody liked him when he did this, and so deduced he should stop.
Utahraptor: Hey, a happy ending!
T-Rex: The moral is to never listen when someone who's great at one thing says it means they're great at other unrelated things.

Off panel: Yeah, I got that - SUPER obvious moral, dude.
T-Rex: Oh!
T-Rex: Well the second SECRET moral is to be nice to me about my stories, how about that??