diff --git a/lib/program.js b/lib/program.js
index b9ebc96..7cc1c18 100644
--- a/lib/program.js
+++ b/lib/program.js
@@ -715,24 +715,6 @@ Program.prototype._bindMouse = function(s, buf) {
     return;
   }
 
-  // pterm mouse
-  // if (parts = /^\x1b\[([\x00\u0020-\uffff]{3})/.exec(s)) {
-  //   ;
-  // }
-
-  // jsbterm mouse
-  // if (parts = /^\x1b\[0~zw([\x00\u0020-\uffff]{3})/.exec(s)) {
-  //   ;
-  // }
-
-  // net
-  // if (parts = /^\x1b}([\x00\u0020-\uffff]{3})/.exec(s)) {
-  //   ;
-  // }
-
-  // TODO:
-  // sysmouse
-
   if (parts = /^\x1b\[(O|I)/.exec(s)) {
     key.action = parts[1] === 'I'
       ? 'focus'
diff --git a/lib/widget.js b/lib/widget.js
index 43ee042..70899e8 100644
--- a/lib/widget.js
+++ b/lib/widget.js
@@ -2516,10 +2516,13 @@ Element.prototype.setHover = function(options) {
   this._hover._.over = false;
 
   this.on('mouseover', function(data) {
+    if (!self._hover) return;
     self._hover._.over = true;
   });
 
   this.on('mouse', function(data) {
+    if (!self._hover) return;
+
     // XXX Does not work as well as it should:
     // if (!self._hover._.over) return;
 
@@ -2541,12 +2544,14 @@ Element.prototype.setHover = function(options) {
   });
 
   this.on('mouseout', function() {
+    if (!self._hover) return;
     self._hover._.over = false;
     self._hover.detach();
     self.screen.render();
   });
 
   this.screen.on('element mouseover', function(el) {
+    if (!self._hover) return;
     if (el === self || el === self._hover) return;
     self._hover._.over = false;
     self._hover.detach();