My solution to writer's block is to stop writing the scene and start a new one with "GET DOWN!" and some kind of vague bad thing gets introduced into the story like "The Swank Incident" or something that radically shifts you from where you were going with it like "robots attack the party and kill his best friend". After I write that new scene I can go back to the old one and try to write something cryptic or setup the plot change in a silly way. It hasn't let me down yet; I don't know if it fits your usual format or not doe.

"Pink is my signature color!" - Elle Woods