One bull in a china shop is bad enough, but two is a recipe for disaster, quipped a wag this week as Delhi chief minister Arvind Kejriwal called Prime Minister Narendra Modi a “coward and a psychopath” and followed it up with a frontal attack on his Union finance minister and the Delhi & District Cricket Association (DDCA) at whose helm Arun Jaitley was till he resigned in December 2013. The instigation, of course, had been the CBI raid on Kejriwal’s principal secretary Rajendra Kumar, ostensibly for a corruption case.