I remember a time when just about anything went on April Fool's Day. Nowadays, people are so uptight and litigious about everything that you can't even do a harmless joke in the workplace without putting your job in jeopardy.
I don't get the "school shooting" joke however. That's not even remotely funny. Back in the day, the pranks were intended to be fun.
Waaaaaah waaaaaaah....