diff --git a/Sources/ShowTime/ShowTime.swift b/Sources/ShowTime/ShowTime.swift
index d74fbd6..ad77c05 100644
--- a/Sources/ShowTime/ShowTime.swift
+++ b/Sources/ShowTime/ShowTime.swift
@@ -32,10 +32,10 @@ public final class ShowTime: NSObject {
     }
     
     /// Whether ShowTime is enabled.
-    /// ShowTime automatically enables itself by default.
-    /// (`.always` by default)
-    @objc public static var enabled: Enabled = .always
-    
+    /// ShowTime automatically disabled by default.
+    /// (`.never` by default)
+    @objc public static var enabled: Enabled = .never
+
     /// The fill (background) colour of the visual touches.
     /// If set to `.auto`, ShowTime automatically uses the stroke color with 50% alpha.
     /// (`.auto` by default)
@@ -49,10 +49,10 @@ public final class ShowTime: NSObject {
     /// (3pt by default)
     @objc public static var strokeWidth: CGFloat = 3
     
-    /// The size of the touch circles.
+    /// The diametr of the touch circles.
     /// (44pt x 44pt by default)
-    @objc public static var size = CGSize(width: 44, height: 44) // TODO: Just make CGFloat
-    
+    @objc public static var size: CGFloat = 44
+
     /// The style of animation to use when hiding a visual touch.
     /// (`.standard` by default)
     public static var disappearAnimation: Animation = .standard
@@ -112,10 +112,10 @@ class TouchView: UILabel {
     ///   - view: A view the touch is relative to, typically the window calling `sendEvent(_:)`.
     convenience init(touch: UITouch, relativeTo view: UIView) {
         let location = touch.location(in: view)
-        self.init(frame: CGRect(x: location.x - ShowTime.size.width / 2,
-                                y: location.y - ShowTime.size.height / 2,
-                                width: ShowTime.size.width,
-                                height: ShowTime.size.height))
+        self.init(frame: CGRect(x: location.x - ShowTime.size / 2,
+                                y: location.y - ShowTime.size / 2,
+                                width: ShowTime.size,
+                                height: ShowTime.size))
         style(with: touch)
     }
     
@@ -126,7 +126,7 @@ class TouchView: UILabel {
     ///   - view: A view the touch is relative to, typically the window calling `sendEvent(_:)`.
     func update(with touch: UITouch, relativeTo view: UIView) {
         let location = touch.location(in: view)
-        frame = CGRect(x: location.x - ShowTime.size.width / 2, y: location.y - ShowTime.size.height / 2, width: ShowTime.size.width, height: ShowTime.size.height)
+        frame = CGRect(x: location.x - ShowTime.size / 2, y: location.y - ShowTime.size / 2, width: ShowTime.size, height: ShowTime.size)
         if ShowTime.shouldShowForce {
             let scale = 1 + (0.5 * touch.normalizedForce)
             CATransaction.begin()
@@ -167,7 +167,7 @@ class TouchView: UILabel {
     }
     
     private func style(with touch: UITouch) {
-        layer.cornerRadius = ShowTime.size.height / 2
+        layer.cornerRadius = ShowTime.size / 2
         layer.borderColor = ShowTime.strokeColor.cgColor
         layer.borderWidth = ShowTime.strokeWidth
         backgroundColor = ShowTime.fillColor == .auto ? ShowTime.strokeColor.withAlphaComponent(0.5) : ShowTime.fillColor
@@ -185,13 +185,18 @@ var _touches = [UITouch : TouchView]()
 
 extension UIWindow {
     
+    struct Swizzled { static var once = false } // Workaround for missing dispatch_once in Swift 3
+
     open override var layer: CALayer {
-        UIWindow.swizzle() // TODO: Only swizzle when enabled
+        if ShowTime.shouldEnable {
+            UIWindow.swizzle()
+        } else {
+            UIWindow.unswizzle()
+        }
         return super.layer
     }
     
     private class func swizzle() { // `initialize()` removed in Swift 4
-        struct Swizzled { static var once = false } // Workaround for missing dispatch_once in Swift 3
         guard !Swizzled.once else { return }
         Swizzled.once = true
         guard let original = class_getInstanceMethod(self, #selector(UIWindow.sendEvent(_:))) else { return }
@@ -199,6 +204,14 @@ extension UIWindow {
         method_exchangeImplementations(original, new)
     }
     
+    private class func unswizzle() {
+        guard Swizzled.once else { return }
+        Swizzled.once = false
+        guard let original = class_getInstanceMethod(self, #selector(UIWindow.sendEvent(_:))) else { return }
+        guard let new = class_getInstanceMethod(self, #selector(UIWindow.swizzled_sendEvent(_:))) else { return }
+        method_exchangeImplementations(new, original)
+    }
+
     @objc private func swizzled_sendEvent(_ event: UIEvent) {
         swizzled_sendEvent(event)
         guard ShowTime.shouldEnable else { return removeAllTouchViews() }