First time I met a Dwarven Centurion. I saw it activate and start walking and I said out loud "Oh [censored]..."
First time I saw a Dwarven Centurion get up to attack, I was like "Cool..."
I like the Dwarven stuff, what can I say?
Nothing's particularly scared me in this game, though.
Edit: Although, I did have a jump or two, one from a rune, yeah. Mainly because I'd never used destruction and I had no idea what the heck blew up in my face. Also when I figured out the stuff on the ground was oil and not just my video card going wonky on me. Although after I found that out I went 'Cool' again.