It's October thirtieth, and on this day in 1976... Elvis Presley arrived late to the second night of RCA’s Jungle Room recording session at Graceland. While the band laid down instrumental tracks awaiting his vocals, Elvis was distracted by the delivery of Harley-Davidson motorcycles, which he insisted on taking for test rides. When he finally entered the Jungle Room, he brought along a Thompson submachine gun, briefly playing with it before setting it aside and apologizing. Admitting he wasn’t in the mood to record, the session was called off.