Ya know, sounds to me like you're little Lark is in WAY too nice condition! All the doors and windows are tight, sheesh... lol.
When I was ten years old, we were at the Southern Nationals in Memphis, Tenn and we locked the keys out of our Avanti II. Well, the doors like to only latch once, not 'double latch' like they should, and the passenger door was 'ajar'. My grandad got a coat hanger, reached in through the ajar door and opened the rear vent window. He then got out his trusty letherman's Super Tool and unscrewed the latch assmebly from the inside, allowing the vent window to open all the way out. Then, he picked me up and slid me in feet first, and I unlocked the door.
So, it pays to take a kid to a car show, especially if you drive an Avanti. :)
Matthew Burnette