Air Canada B742M SIN-BOM-LHR... 1990'ish
Main deck cargo door lock indicator light showed "unlocked" as power was applied from a full stop take off... it happened twice, third time lucky.
Scandinavian B763, SIN-BKK-CPH, 1992'ish.
Delayed by 3 hours due to closure of Afghanistan airspace, causing our flight to fly at FL270-290 ish until India (which resulted in an occasion when a HUGE side gust caught the plane and tipped it by 30 degrees all of a sudden)
AWAir PK-AWA, A313 SUB-CGK, July 2000.
Uncontrolled fuel vent on left wing on take off, with a 180 degree turn... flew over a refunery! Cabin crew fought about who is to blame for door 3L not being armed. Cabin crew said the fuel venting was "normal" and would go thicker as "we go faster"... Left engine failed in descent at FL340 (from 350) and relit only at FL160. A few months later, the same plane had the left engine written off in a controversial fire.
When losing situational awareness, pray Cumulus Granitus isn't nearby !