If you wouldn’t want to do the same thing to Boris Johnson or David Cameron or Keir Starmer or Jeremy Corbyn or Vince Cable or Ed Davey, then it’s likely to be otherisation and cruelty. Abuse.
Because it likely indicates that you fear what would happen if you did. If you do something “funny” only to people who you perceive as having less power than yourself, then it’s almost always abuse. Asking yourself if you’d be willing to do the exact same thing to any of the above-mentioned top politicians can help clarify that.
See my previous post about what happened to former nurse Mrs Ann King at Reigate Grange. It wasn’t funny at all, but the people who did it to her seemed to think that it was.