Can't say too much as I'll be outed! But a management level ex colleague left last year after a year's mat leave just a couple of months after I joined. By the sounds of it even though she was well liked, I'm glad she's gone as I don't think we'd have got on as she sounded very self important (especially after hearing her massively elongated leaving speech!) and quite up herself in terms of not taking jokes, even ice breaking ones, and requiring brown nosing/ego massaging!(Had to ask her advice at one point and I did not like the way she replied, quite curt, quite patronising, and there was no need for it).
Maybe we were both lucky how things turned out!