No More Mister Nice Guy lyrics

I used to be such a sweet, sweet thing
Until they got a hold of me
I opened doors for little old ladies
I helped the blind to see
I got no friends 'cause they read the papers
They can't be seen with me and I'm getting shot down
And I'm feeling mean
No more Mister Nice Guy
No more Mister Clean
No more Mister Nice Guy
They say he's sick , he's obscene
I got no friends 'cause they read the papers
They can't be seen with me and I'm getting shot down
And I'm feeling mean
My dog bit me on leg today
My cat clawled my eye
My mom's been thrown out of society circle
My dad's had to hide
I went to church incognito
When everybody rose, the Reserved Smith
He recognized me
Punched me in the nose

Submitted by Guest

What do you think is the meaning of No More Mister Nice Guy by Alice Cooper?