sorry to hear... but cosmic ftw!!
i did this a few years back, i has a starlet auto, same setup really, i left in N, with just a handbrake on(drums) procceded to walk away, then to look back and follow in chase... i rolled into my mums pajero which had a cable toe on the front.. so nothing wrong with it, the starlet however... rooted
Again don't feel bad, I did it to my SP23 two years ago, rolled down the street and under the flat tray of a ute! I thought I'd put the hand brake on, but obviously no where near enough!! Was very lucky it didn't take anyone out...........
Ouch, glad you're ok mate, don't feel bad I've also done the no hand brake thing in an auto commodore - rang over my own foot before I reached in and pulled the brake!