Do you use a headset when you play?

I play a lot of games, and about half of those I play online with other people. I wear my headset about 15% of the time I play online with random people. The amount of helpful people with mics compared to the nonsense is maddening. I know a bunch of people dislike when others do not use a headset when playing a multiplayer game but all the fools ruined it for me. So, what do you do when playing with random people online? Mic or no mic?

I use a mic most of the time, the only competitive multi-player game I ever play anymore is Modern Warfare 2. 
I usually just don't talk, and the idiots don't bother me too much, if they do I just mute them. 
 
The rest of the time it's Co-op type stuff, so of course I use a mic for that.

I usually just wear my headset when I'm playing/talking to friends.

Alot of the time I'm playing with people, so if it's something like CoD or Left4Dead then yeah, it's annoying setting it up on the PC, we're always using random vent details, and it's a chore to find them out =/ Then my talk binds always seem to clash with something else =(

I only use my headset (turtle beach) when im playng mw2 which i rarely play anymore or when i play online with mates

I always use my mic. Its just something i do :D

No. Too many assholes online for me to care what people are saying. Most people don't say anything important anyway?

I have a wireless 360 headset. Its nice when I dont have the time to mute people I can just take it off my head and not worry about wires.

only when playing Battlefield 2 online and on ventrilo talking to people

Only when playing with friends. Never with strangers.

I'm 14 years old. Does that answer your question?
 
Yes, you shouldn't play with me.

Short answer- Yes.
Long answer - Hell yes!

Only when playing with friends or in a co op game mode. Don't enjoy talking to random idiots online.

I don't usually as I'm never in a mood to speak but I've decided to plug in now I've started to play Halo 3 as that's the only game people use a mic.

I only have a headset for the Xbox 360 and I use it whenever I play online.

Mostly just when my mate is playing, who I know in real life, or when dudes are talking trash.

Yeah. It just became a habit if im gonna sign on live to play to just grab and put on the mic in case a friend wants to talk. Even if they dont I still use the mic since I play a lot of Halo and people arnt the most competitent of teamates i still tend to call stuff out to try and help the team.

Only when  I play Team Fortress I see if their are Duders in the game with mics.

I used to, then my dog decided it was a wonderful idea to chew my headset. I've never gotten around to replacing it.

Most of the time I don't wear a headset for online play. Sometimes I'll use it when I'm playing Halo 3 but most games don't have people communicating in them and when people are communicating it's not usually very constructive.

If I play on xbox live I tend not to since it's full of people just shouting random crap or having an argument, or some whiny american 12 year old, so I don't bother joining in and thus don't wear it. Only ever do if i'm talking to friends in party chat or something. 
 
On PC however, I wear it all the time since it feels right and I can actually hear footsteps from where they come from and people tend to use it for its proper use, instead of abusing it. 

Only when I play TF2, and plan on winning.  I'll plug it in for L4D if everybody else has mics.

Usually I'll wear my headset, at least for Xbox games I will, since it's much easier to just plug the wired headset in than to grab my bluetooth & sync it for my PS3.
 
For the most part, I use my headset as a free telephone, since I'll just party chat with a couple of my friends online while I toy around with Peggle or something.

I curse wayyyyyyyy to much when gaming for it to be appropriate for anyone else to hear. So no. I don't use a mic.

depends on the game if its all about working as a team I will have the mic to listen to teammates but if is a call of duty game no mics

only when I play with certain friends. 

I used to but then i broke my mic after i nerdraged over a game of sf4. now i have to holdd it to my ear to talk.

Always, I don't like using speakers.

All the time. 

I changed the settings so that I can't hear strangers. Plus I hate wearing the headset, it makes me feel and look stupid. I try to wear it as little as possible.