Chord/Tab song: Letter of Complaint

So a few days ago I came across this song and I liked the verses very, very much, so I
needed to play it.
Sadly I couldn't find any tabs for it, which left the task for me. It was easy enough
but it's my very first tab, so I hope everything turns out.
The chords I took from a live video though, so they should be fine.
Except for the C chord because I couldn't figure out how that is played since it
doesn't sound like a pure C.
However, the guitar in the live performance was beautifully awful tuned so perhaps that
may have caused it to sound differently.

I'm going out to[G]night
Oh just to feel a[Bm]lright but
C
I'm not too sure
That I w[Am]anna go
The music[G] I won't understan[D]d
And the people I won't know[G][D]

I will be sick a[G]gain
You will be sorry[Bm] then so
C
It's probably best
I'm stay[Am]ing tonight
And the p[G]eople on the paveme[D]nt ah'
sking if[G] I'm alright[D]

[Am]Ooh[G] ([Am]and[G] s[Am]o on)[G]

Some people think I'm boring
But I'll be ignoring
Can't bother me man
'Cause I can't help but smile
In the pleasure of my own company

I'm going out tonight
Oh just to feel alright but
I'm not too sure
That I wanna go
The music I won't understand and the people I won't know

[Am]Ooh[G] ([Am]and[G] s[Am]o on)[G]

http://www.evansthedeath.co.uk