Seatbelts! Seatbelts! Seatbelts!
I had my come-to-Jesus seatbelt moment in 1994 while approaching IAH in a CO B742 on a hot convective day. A few miles from the airport, the aircraft suddenly dropped 100 feet. I was strapped in, but the FA and the beverage cart next to me hit the ceiling. He hurt his back and, thankfully, the cart landed in an open area near the mid-ship galley. Turns out, 13 people were injured, which delayed our deplaning.
Commercial aircraft flown in: B712 B722 B732 B734 B737 B738 B741 B742 B744 B752 B753 B762 B772 A310 A318 A319 A320 A321 DC91 DC93 DC94 DC1030 DC1040 F100 MD82 MD83 A223 CR2 CR7 E175