I will show you great microsoft word prank that will frustrate the victims very much, whenever they type a certain word, another word appears! This prank is great for office and schools.
Step 1: Launch microsoft word
Step 2: Go to Tools -> AutoCorrect Options…
Step 3:
In the space where it says Replace , type a real common word such as the, and, a,I, you etc. In the space that says With , type in a crazy word such as fdgfdhkihyob45, whatever you want! Then , click on Add