How about I put the balloons into a room and popped them
If it makes you happy. I guess it would be intentional?
Yes, it's part of my plan to see people scream
It seems like you trying to do a prank on people, I understand it may seem funny to you but it may not go over well with other people.
Why would that be the case?
People could see you as intentionally trying to be annoying and not understand your trying to play a prank. I think it would be best to just allow the people to have a good time and not go through with the prank.