Easy portrait shot. Thinks focus, come on, focus....(presses shutter release button harder as if that'll help matters), why won't this thing focus??? Mutter, mutter, getting impatient....bloody equipment!!!!! Moment of realisation, cough cough, clicks focus limiting switch on side of lens to allow minimum focus distance. Admit it, you've done it too.
Renting 500mm lens. Open flight case in shop to inspect new toy. Nice. Close lid and flip locks shut. Lift case by handle and watch case pop open in 3.6 nanoseconds. Almost empty bladder in 3.5 nanoseconds. Luckily the velcro strap held the lens in place. Must remember to apply some compression to lid when closing to ensure locks engage. Are we insured, sir?