Michael R. Bloomberg can grow easily irritated, and he minces fewer words the closer he gets to the end of his near-infinite mayoralty.

Last week, when two of Brooklyn’s state senators put the kibosh on the mayor’s request for cameras intended to nab drivers who speed near city schools, Hizzoner did not bother with conversational niceties.

He offered to hand out the telephone numbers of the senators, Simcha Felder and Martin Golden.

“Maybe you want to give those phone numbers to the parents of the child when a child is killed,” the mayor said. “It would be useful so that the parents can know exactly who’s to blame.”

You might wince at the mayor’s ire except that it’s hard not to applaud. I have written critically of the Police Department’s investigation of pedestrian deaths, and under great pressure from the City Council and advocates, that department has budged of late.