Need an insult? Glee's Sue Sylvester can help! In this video guide, the ruthless cheerleading coach trains us to defeat our enemies with put-downs that sting. We rounded up clips of her most outrageous comebacks and learned it's best to hone in on one unfortunate quality of your opponent (such as Mr. Schuester's hair), to avoid clichés, and when in doubt, just deadpan everything. Watch the Sue highlight reel now and tune in tomorrow at 8/7 c on FOX to find out how she handles guest star Gwyneth Paltrow, who stops by as a substitute teacher!