Why Sometimes Pranks Were Not Funny!
What Is Prank?
From Cambridge Dictionary, it is to mean:
A trick that is intended to be funny but not to cause harm or damage
This definition somehow wasn't accurate because sometimes pranking people will cause harm or damage.
Everybody Loves Pranks
Yes it is a truth. I love watching people got pranked too, eventhough sometimes I felt sorry for them. Indeed, watching the reaction of people after being pranked is totally an addictive experience.
However Overdone Pranks Never Be Good!
Pranking people sparingly should be no problem but overdoing it is something not good. Nobody loves to have himself being chased by a man having a bloody chainsaw, or crowbar(like in Half Life games). Or encountering a guy which is chopping another guy's head with an axe or smashing the head with a big hammer like doing a mashed potato.
Cambridge prank definition stated that pranks were not of something harmful or bringing damage but this definition wasn't accurate. This is because, one should consider the harm and damage to non-physical body too, the emotions, the fears which the victims shouldn't have. But sometimes the pranks also could have a physical body damage, like what if the victim is having a cardiac problem? Then he could be dead by this dreadful prank!
By the way, as you can see below, they are examples of good pranks. You should love those kind of pranks!