BrooklynBoy, you should simply tell the priest in plain language what you did. You do not have to make your sins fit some tidy package of words like “vandalism.” If you speak plainly about what you did, the priest will be able to help you much better to determine the extent of your guilt. You may find that some of the advice you have received online is not exactly appropriate to your circumstances. For example, the priest may tell you that childish pranks like putting ketchup packets where they don’t belong are not serious sins at all because you did not forsee or intend any of the consequences. He will tell you what, if any, restitution is required. Perhaps pink stains on chairs are considered “normal wear and tear.” But you won’t be able to discuss any of this if you carefully couch your sins in “special words.” Please, just speak plainly. And don’t be offended if the priest chuckles a little. You also thought it was funny, didn’t you?
Betsy