When did Bono turn into Bernard Black?

I've been meaning to blog this for a while, but I can't help hearing these words of Bono's in the inimitable vocal style of Bernard Black:

"You know, we pay a lot of tax by the way, a lot of tax, enormous, millions of tax"


"I'm a quitter. I come from a long line of quitters. It's amazing I'm here at all."