OK, it's more often than "occasionally"... :)
However, every so often, Biden's directness is spot on and appropriate.
From the Orlando Sentinel, h/t to Taegen Goddard's Political Wire for spotting this (emphasis added) -
Vice President Joe Biden turned a dinner speech to Florida Democrats at Walt Disney World into a pep rally Friday night, blasting Republicans as obstructionists with whom he said the administration can no longer work.
"That's what I find absolutely bizarre: Republicans moralizing about deficits. That's like an arsonist moralizing about fire safety," he said. "These guys have zero credibility."