Mid '70's Allegheney BAC-111 from PIT to STL (?) - anyway, in daytime cruise with a very light pax load, a cabin window on Lt side blew out with a sound like a 12 Ga shotgun - roaring wind - swirls of paper, etc. I was sitting aisle across about 3 rows back. A guy on Lt side 1 row back started pointing and screaming "The window, the window!" which to me sounded like "the wing, the wing" - that misunderstanding really got me going for a minute! Co-pilot came running back - looked and visibly freaked out - ran forward and aircraft immediately dived to a lower altitude. I do not recall O2 masks dropping.
We deplaned in DAY and sat there for several hours until a replacment aircraft arrived, but not before we watched a mechanic right before our eyes cover the broken window with strips of "600 mph tape" to ready it for a ferry flight.
In the last 30 years, I have also had 2 engine failures - 1 IFSD and one on take-off (aborted); stories for another day.