I slapped someone only once in my life. It was in sixth grade and my classmate was doing that weird “I’m not touching you,” thing—except with his whole body. We weren’t friends, I didn’t know him that well, yet he decided it was ok to weirdly ghost-grind on my body. So I slapped him during fourth period gym and the sound echoed throughout the entire and turned the heads of almost one hundred students. I immediately apologized after but you know, get away from me dude! Consider these 15 slap GIFs instructional. You never know when you’re going to need to put some creep-o in their place.