Ensure the hover event doesn't match hovercraft. Witchcraft, maybe.

src/event.js

@@ -2,7 +2,7 @@
 
 var rformElems = /^(?:textarea|input|select)$/i,
 	rtypenamespace = /^([^\.]*)?(?:\.(.+))?$/,
-	rhoverHack = /\bhover(\.\S+)?/,
+	rhoverHack = /\bhover(\.\S+)?\b/,
 	rkeyEvent = /^key/,
 	rmouseEvent = /^(?:mouse|contextmenu)|click/,
 	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,

test/unit/event.js

@@ -807,6 +807,9 @@ test("hover() and hover pseudo-event", function() {
 
 	var balance = 0;
 	jQuery( "#firstp" )
+		.on( "hovercraft", function() {
+			ok( false, "hovercraft is full of ills" );
+		})
 		.bind("hover", function( e ) {
 			if ( e.type === "mouseenter" ) {
 				balance++;