Please give me a slogan to stop using mobile phones in class!

1. Did you come to college to learn how to play with mobile phones? ! ! 2. Play for a while and finish your life. 3. Playing with mobile phones will make you have dull eyes and a face full of acne. 4. God gave me youth, but I use it to play with my mobile phone. 5. Are you playing on your mobile phone? In fact, your phone is playing tricks on you! ... PS: Haha, suddenly I had a flash of inspiration. These are all original works for the poster to choose from. I hope it will be helpful to the poster. If you are satisfied, please adopt them!