Prank videos are huge on YouTube but not all of them are in good frun. These are the top 10 pranks that went too far.
A practical joke is a mischievous trick played on someone, generally causing the victim to experience embarrassment, perplexity, confusion or discomfort. A person who performs a practical joke is called a practical joker. Other terms for practical jokes include prank, gag, jape, or shenanigan. (source : wikipedia