Err, that's exactly what Bibi did. He slapped Hussein down about as brutally as you'll ever see diplomats/leaders do. He bluntly told Obama to go stuff himself.
Hussein has slapped down — viciously — world and national leaders again and again. With a passive-aggressive mean streak, a lashing out when the victim is most vulnerable.
As I posted back during the campaign, as between Bibi and the One, our money is on the full suit not the empty one.