Because the joke is usually at someone else’s expense. Yes, people get a good laugh over the joke but what about the target of the joke, how do they feel?
I found this on Bob Berg website,
Huge downside, including — but not limited to — hurting another human being’s feelings; making yourself look bad; destroying trust with the target of the joke; losing trust (thus influence) with those who are witness to, or hear about, the insult; and being disliked without a principle-based reason for it.There doesn’t have to be a person who is the target of the joke and there are several types of humor.
So if you are going to pull an April Fool joke today… think about the victim of your joke. There are many types of April Fool’s joke out there that are not at anyone’s expense.
But there are some good, safe April Fool jokes out there (of course I researched this), and one of the best that I found was taping a harmonica to the front bumper of a car. As you drive the harmonica starts to groan out a long note (This came from The 48 Best Harmless April Fools' Pranks to Pull This Year).
But, please, please no glitter!
P.S. Remember today is not a good day to come out to your friends as trans.