Let's judge the reactions.
TYLER ENNIS: B
Sufficiently scared, yet he responded quickly enough.
JEFF HORNACEK: C+
"I used to set cross-screens for Karl Malone. A dinosaur doesn't scare me."
MARK WEST: C-
"I used to go against Oliver Miller in practice. Now THAT'S scary."
ERIC BLEDSOE: A++++
That's a good five seconds of running away. And now he's declaring war on Goran!
GERALD GREEN: F
Fine, we can't scare you. Congratulations. Have a gold star
ARCHIE GOODWIN: D
I'm told nothing about this video was staged, which makes sense. But I still have questions. Why would Archie Goodwin carry around that carton of water? Why would he immediately fight a T-Rex? That was an awfully quick reaction.
ANTHONY TOLLIVER: A-
As someone who always gets scared by these kinds of things, I feel for Anthony Tolliver. Here he is aimlessly checking his phone like we all do multiple times every day, and suddenly some idiot dressed up in a T-Rex costume disturbs him. That's genuine fear.
ZORAN DRAGIC: B-
Not bad, but Goran oversold what the reaction ended up being.
ALEX LEN: C-
It's hard to scare a big guy.
ROBERT SARVER: D
(But seriously, he actually looked pissed).
MORRIS TWINS: C
They ran away like Bledsoe, but they turned and ran too soon after they registered their fear. Again: this wasn't staged, but I've got questions.