When someone steals your food, you write a passive-aggressive note on the fridge that subtly mentions their name.

You deliberately misspell a rival’s name in a public thank-you post to annoy them.

You block someone entirely, then immediately unblock them so they get a notification that you were thinking about them.

You read a rival’s humble-brag post aloud to a friend, mocking them privately.

You start following (and heavily engaging with) a professional rival’s biggest competitor online.

You spend five minutes drafting a mean email, then delete it and move on.

You send an anonymous gift basket with an item that subtly symbolizes the Rival's failure

You "accidentally" reply all to a large group with a private, dismissive text about someone.

When you run into a rival, you loudly pretend to forget their name for a moment.

You post a very successful update, but add a postscript thanking everyone who didn't humble-brag to you.

You buy non-dairy creamer that looks identical to your stolen creamer and replace it just to watch the thief suffer.

You only communicate with a difficult person using cold, minimal emojis for a month.

When complimenting a rival, you intentionally use a condescending term like "cute" or "sweet."

You bring a dessert to a potluck that you know one specific person secretly hates.

You wait until someone is washing their hands, take the last paper towel, and then walk out without telling them the dispenser is empty.

You change your Wi-Fi name to something passive-aggressive directed at your neighbor.

You "forget" to introduce a rival to a key, important person in a group setting.

You wait exactly seven hours after a post to like it, making it seem like an afterthought.

You wait until someone returns a borrowed item damaged, then you destroy something of theirs and return it with a simple, empty apology.

You comment on a boastful post using only facts and data, sucking the emotion out of their claim.