Give em the bird

 The Finger Cap
If anyone is annoying you just squeeze the pump and flip them the finger. Let The Finger Do The Talkin'! How to use the finger Cap: It's so simple! Just thread the tube down your sleeve or the back of your shirt and hold onto the pump. If anyone's annoying you just squeeze the pump and flip 'em the finger! This is a baseball type cap with adjustable velcro band on the back.