Teens these days have no idea how hard it was to use computers and the internet in the 90s. Their reaction to the tutorial video 'The Kids Guide to the Internet' is totally hilarious and makes the rest of us wonder how we ever survived the early days of computing and the world wide web.
The office environment is a great place to pull harmless pranks for April Fools Day. You just need a coworker that leaves their computer when they leave for meetings or lunch, then you do your dirty work and enjoy when they return. Just make sure they have a good sense of humor first.