mechanics are definitely worse if your a female,
i have a few tricks to help with the mot, firstly i make sure i have a suitably tight pair of jeans on and a "flattering" top, i will always have forgotten to put the rear seats back up after having the dogs in the back, so have to climb in the boot to reach over and pull the back of the seats up (im quite short so i have lean right over!
i also like to hang around and ask the nice gentleman to point out any failures as i can fix a lot of them myself (that is actually genuine, i will do minor work with own fair hands!!)
i usually find this ensures a fair mot, as i have now found a favourite garage i dont need to bother with the hanging about to watch bit!!