A Primer (14 comments)
Far too many people on the internet make mistakes with pronoun usage, usually misplacing "I" and "me." Some were even told in grammar school (ironic, no?) that they should always use "I." that's unacceptable, so I'm going to lay it out here.
Before the pronoun selection can be tackled, we need to look at transitivity. A transitive verb performs an action on something.
ck rebooted the server.
...uses a transitive verb,
The new Pope looks evil.
...does not.
When we're talking transitively, there's a clear separation between the actor and what they're acting on. That distinction determines what pronouns should be used. The actor is the subject and the target is the object.
The subject uses subjective pronouns: I, you, he, she, it, we, and they.
The object uses objective pronouns: me, you, him, her, it, us, and them.
Most people get it right when it's just one person:
I ate whipped cream for dinner.
The whipped cream was brought to me.
The majority of mistakes seem to come about when the story involves the teller and an accomplice:
Billy and me saw a UFO.
Jake's stepmom made him give all his baseball cards to Kevin and I.
I realize that most people aren't going to be like me and think "jake is the one giving away his cards, so I need to objectify myself, and the objective first person pronoun is 'me.'" While it would be nice if most people were trained to stop and think about their grammar that technically, it's not going to happen. So now that I've laid out the background of the transitive verb's role in differentiating subjects and direct objects, I'm done with this jargon.
For all the people who waffle back and forth and choose wrong in the above cases, all hope is not lost. If you're ever puzzling over "me" vs. "I" in a case like those above, just temporarily get rid of your friend.
As I mentioned, most people do just fine on things like:
I gave Jack two black eyes.
...but falter when there's teamwork involved:
Sasha and I gave Jack two black eyes.
Leaving out the "Sasha and" from the harder version makes it into the simpler version. Once you figure out that "I" is appropriate, you can put Sasha back into the mix.