PowerShell - Speak random cat facts (https://www.reddit.com/r/PowerShell/comments/6550a7/using_powershell_for_office_pranks)

readme

Sadly the original API used for this appears to have been deprecated by Google.

But I found another! Hazur! Cheezeburgers for all.

Full credit to the original post for the absolutely amazing idea and coming up with the logic, I've just replaced
the API used to be http://www.catfact.info/

catfacts.ps1

#Run this every 1/2 hour and in an 8 hour work day there will be approximately 3 times per day that your victim hears a cat fact
if ((Get-Random -Maximum 10000) -lt 1875) {
    Add-Type -AssemblyName System.Speech
    $SpeechSynth = New-Object System.Speech.Synthesis.SpeechSynthesizer
    $Random = Get-Random -Maximum 200
    $CatFact = (ConvertFrom-Json (Invoke-WebRequest -Uri http://www.catfact.info/api/v1/facts.json?per_page=200)).Facts[$Random]
    $SpeechSynth.Speak("did you know?")
    $SpeechSynth.Speak($CatFact.details)
}