I cracked up at that. Exactly the sort of thing that Batshit does.
Indeed, time for a Batshit Update.
We had a very nice walk yesterday, across one of my permissions which is now mostly wheat stubble. There is a very modern scarecrow (mawkin, as some Suffolk people still say), wearing a boiler suit and a cap, put out I suppose to frighten the pigeons off the ripening crop, and now positioned out of the way of the combine and the baler. The first time Brains spotted it, a few weeks back, she was deeply disconcerted. Looks human, does not smell human, no detectable heartbeat or breathing (IME dogs can hear you breathing from a surprising distance). She got close, established that it was indeed not a human, and wrote it off as not worth her time. When she saw it again yesterday, she totally ignored it even though it had been moved. Batshit of course didn't seem to clock it either time. Batshit was also not the one who flushed a little covey of partridges.
We did a little bit of heelwork along the lane back to the car, and then drove home. Brains hopped neatly out of the car. Batshit decided that she was very excited and jumped out diagonally, slipping on the edge of the boot. She landed mostly on one of her shoulders, got up, shook herself with a look of bewilderment, and then proceeded as if nothing had happened.
I think I mentioned the other day that she jumped up onto a bale and, despite knowing exactly how wide bales are from long and also recent experience, completely misjudged the necessary velocity and went straight off the other side.
So yep, sitting on the edge of a kerb and then sliding off it is 100% something she would do. I'll let you know when it happens, not that we encounter many kerbs.