I had a fun incident on the A319. Taxi out at GLA, and was asked to make an intersection T/O. Out comes the performance book, and it was put down on the centre console, between us.
As I picked it up to put it away, the edge of the book, caught one of the "arms" of the park brake, and flipped it around to On.
We came to a very abrupt and embarrassed halt. No one hurt, only my pride.
L337