Yes, that's exactly what this was.....

David Paterson crashes a rival's party:

Gov. Paterson made an attention-grabbing appearance last night at a birthday-bash fund-raiser for his political rival, state Attorney General Andrew Cuomo -- the likely 2010 Democratic nominee for governor over the poll-challenged incumbent.

"Andrew looked shocked," said one guest. "The governor bum-rushed him. They greeted each other. It was stiff and cordial. It was like seeing your old girlfriend at the prom."