Yes, the amount of staff when I've been there around lunchtime is ridiculous! Would be better to shift some of them to the night hours to make us feel safer.
I actually witnessed someone virtually 'hurdle' the wall where the gate is on the left-side of the station to avoid paying the other afternoon. Just one step onto a small box half-way up and over he went - with a bottle of beer in one hand!
One of the several afternoon staff in attendance that day knew what happened but wanted to avoid 'confrontation'... Make of that what you will.