Today however he has done it again with a sideswipe at the David Cameron's Conservatives' current love affair with greenery yallery.
At a conference in the Brussels Parliament discussing tax competition he rounded on Zac Goldsmith in answer to a question from the floor,
"You mentioned Zac Goldsmith. Well in the seventies the labour Party had a problem with entryism by Marxists who took over sections of the Labour Party. I
fear that in the 21st Century the Conservative Party has a problem of entryism
with Greens and its something we need to watch out for".
There again, his attitude has been mentioned before, but maybe in not such a forthright fashion.