Chicago Tribune | DEA Agent Shoots Self in Gun Safety Class: "He drew his .40-caliber duty weapon and removed the magazine, according to the police report. He then pulled back the slide and asked an audience member to look inside the gun and confirm it wasn't loaded."
-- Remember saftey rules 1 & 3. Also as I recall from when I took a skeet (or was it trap) class. Never takes anyones word that the wepon is unloaded always inspect it yourself.