Last week Kathy Griffin, this week Billy Bush: Real Time‘s rehab for post-Trump career slumps was open for business tonight, and HBO host Bill Maher gave the former Access Hollywood anchor and infamous bus giggler plenty of space for reflection. But first thing’s first: No, Bush said, he did not give Donald Trump any breath-freshening Tic Tacs. "Thirteen years ago I kissed a lot of ass,” Bush said, “but that's where I drew the line.” Maher asked Bush what he’d have done…