Grand Rounds this week started with airway QI and COVID-19 airway management per the consummate expertise of Dr. Carleton. Dr. Mullen then taught the pearls and pitfalls of urine drug screens, Dr. Paulsen arose victorious from CPC vs. Dr. Wolochatiuk, and Dr. Ijaz gave a stellar review of ear pathology in the ED. Finally, Drs. Golden, Ham, and Spigner took us on a tour de force remote simulation of structural collapse with crush syndrome complicated by hyperkalemic arrest.