The thing about pranksters is that they don’t need the perfect time or place to pull off a prank... anytime and anywhere works, as shown in this clip. <br /><br />"I wanted to prank my sister-in-law, but my grandma’s reaction stole the show," the filmer, Walter, told WooGlobe. <br /><br />While the ladies are relaxing on the sofa, Walter sneaks a sound system behind them and blasts loud music, giving Grandma quite a fright! <br /><br />Looks like Walter will have to watch his back 24/7 now, as a comeback prank might be in the works. <br />WooGlobe Ref : WGA119654<br />For licensing and to use this video, please email licensing@wooglobe.com
