Does this mean I should keep my phone on in class?

This is a classroom issue best addressed by your instructor. However, it is good cell phone etiquette to set your cell phone to vibrate to be respectful of others around you and avoid in class distractions

Safety and Prevention Tips

Fire Prevention Tip #14

Keep grills at least 10 feet away from all buildings, including building overhangs, porches, and balconies. The 10 foot rule is state law at apartments and multi-family homes and good practice at every home or building.