Sometimes something very subtle yet strategic can be very effective. Like, saying something with a slightly different tone that just sounds every so slightly inappropriate. Or handing something to someone that just seems slightly off, like handing a tissue to someone, but it's draped over your hand instead of just handing it to them. It's just enough that you probably won't say anything, but you'll definitely pause for a second to think “huh… that was weird.” Well, this is the route one annoyed…