In a (probably futile) effort to spark some conversation on here without using the poll's (since they're unviewable at the moment), I am asking all of you, what achievements on your achievement list are you most proud of?

Here's my list so far, though I'll probably be adding some on as I get them.


Defiant
Hit the trashcan cop with the can.

"I like this one just because it made me really happy to get an award for disobeying that ass hat."


Lambda Locator
Find all lambda caches in Half-Life 2.

"Because this one was hard as shit to get"


The One Free Bullet
Beat Episode One firing exactly one bullet. Grenade, crowbar, rocket, and Gravgun kills are okay!

"Another hard as shit one"


Little Rocket Man
Send the garden gnome into space.

"Like the insane mode difficulty here"


Master of Disguise
Trick an opposing medic into healing you.

"Easier than it sounds since most people who played then were complete idiots"


Silent Assassin
A Silent Assassin rating has been awarded.

"I always like trying to get the Silent Assassin ratings all of the Hitman games."


War Hero
Complete all chapters on Professional.

"Not particularly hard, but I did it myself and got it before showells and Altitude and they were working together."


Let's Get This Party Started!
Unlock all selectable characters in Versus.

"Another one I got before Steve and Al."


Endangered Species
You collected every hidden package in the game.

"More annoying than difficult, still, I gots it!"


One Man Army
You survived a 6 star wanted level for a full 5 minutes.

"I got this one the hard way so all you people who ran into the subways can suck it!"


Untouchables
No Survivors take damage after contacting the rescue vehicle.

"I got this one before anyone knew of the cheap way to get it. I stood on that dock and fought to keep those fuckers away from me and my buddies."


Safety First
Play an entire campaign with no Survivors taking friendly fire damage.

"I was able to get this one pretty easily in single player, but everyone else felt that I should help them do it in multiplayer, not realizing of course that this was much harder, and (in my case) much more entertaining "


Shake It Baby
Tip an exotic dancer.

"Need I say more?"


NIGHTMARE
Win a Nightmare level in single player

"Not by far the hardest achievement in DOOM, but it certainly was difficult."


Deep and Hard
Complete the game on Hardened or Veteran difficulty

"I completed it on Veteran, because I'm one of the few people here who wasn't too much of a pussy to get it."


Mile High Club
Sky dive to safety on Veteran difficulty

"Another one that everyone in this clan was too much of a pussy to get EXCEPT me."
P.S. If you weren't a pussy and actually got this achievement please say so, so that you too can rub it in everyone else's face.