If you've ever wanted to appear smart as you get back at someone who's getting on your nerves, you've got to read these clever quips . There are some times you just can't say what's on your mind, like when you're at the workplace, or when you're talking to family members you don't get along with, or even when you're dealing with someone you dislike, but it'd be super impolite to diss them out of nowhere. In cases like this, you need some low-key insults. You've got to pull out the best quip you…