Your first death.

[sneakysob]

The zombies you meet in very beginning on inferno

[fetju]

act 2, got swarmed by those poison-shooting bugs.

hate those!

[Marston]

Act 2. First group of mobs. Lacuni and Wasps. I hate thess enemies since then. xD

[Riathy]

Act 4 in a random dungeon wanting to grab loot did not notice a big ice ball forming on top of it, not to mention I barely survived the fight

[Ragetacular]

Act 2, got swarmed by those poison-shooting bugs.

Oh god this. I hate those things

[Nerraw]

Somewhere in Act 2. Died to a bunch of those damn sand wasps because someone talked to me and I turned around for a second.

[nogard64]

What was happened the first time you died in Diablo 3? For me, my very first death was due to lag very early on in Act I, but I don't exactly count that. :P My first REAL death came when I was doing Belial and did not realize just how much damage the green shit did to my squishy Demon Hunter self. Needless to say, I made sure to avoid all of it my next attempt. :P

I'm dying to lag all the time, I see my self charge in.... I do one hit... game freezes for about 3 seconds.... boom I'm dead.

[Sylreick]

Act II, the desert part with Zoltun Kulle, my first encounter with lunatics...

[Flaks]

Act 3 against those plague dudes. I didn't just die once against them. Happened over and over and over. On normal. I was disappoint.

[MarizzaDraenor]

1st 4-5 deaths where due to massive lag spikes. the ones after due to misspulls

[Odyseas]

First time I died was in that castle where you have to help the soldiers raise the catapults or something (Act3 ??). Anyways, at some point I was asked to clear some trash mobs inside the castle and I got killed by those fat ass mobs that explode as soon as they touch you. Got 1-shotted 3-4 times, so annoying...

[xskarma]

Yeah click to not move got me too ... until I worked out there is a force move key just like there is a force cast (shift) key.

This is AWESOME. Just tried it and it works a treat. No more deaths to not moving! I salute you, sir.

[VeNoMmx]

A friend's lvl 10 Barbarian died with the poisonous trees in act 1, i made it by a mere handful of HPs, i got a lvl 10 monk, not dead yet

[Deleted]

First Act, those trees that spit out flowers that release poison.

I killed one, and it dropped a load of gold in the poison and I thought "it'll be fine, there's health globes in there too and it wont do much damage". Ran into the poison and died much faster than I thought I would

[Auloria]

Act 1 Tree poop. I figured it wouldn't hurt that much and went in to collect the loots. D-X

[Deleted]

My First death were in Act 1 with trees and poison. Died because i thought its damage shouldnt be that much Nab in gear

[Woebegone]

Coming into this thread I was certain Belial would be something like 60-70% of the answers. Belial 'phase 2' was just so much more challenging than anything in the game until then.

So, yeah, Belial. Over-complicated approach when I tried to vault out of the green crap to minimize downtime. Turns out that if you exhaust your discipline vaulting and then find yourself standing in a corner, you're screwed.

[Kujako]

Server lag against a mortar mini-boss.

[Landin55]

God damn trees in act 1......ugh /facepalm

[Echelon4]

Act 2 Timed Cave. Didn't know what would happen if time ran out. (I expected it to kill me). So when time got low, I ran around trying to find the exit. I found a lot of mobs and got pinned. Turns out you don't die when time runs out.