Re-use mnded or just plain mean, well I don't throw things away unless they are beyond re-use or recycling, never have done for as long as I can remember. Having found that even buying decent brand paint brushes they soon get ruined by acrylic paints I just buy packs of cheap ones now, sooner or later they all end up with splayed bristles and tidying them has until now being difficult. Using scissors or a scalpel is difficult unless you can manage the bristles, however an idea I have tried that seems to work quite well is using small nail clippers, not perfect but certainly made this splayed out brush a usable shape again. The clippers are old so not perfect, if I bought some new ones that were sharp a better haircut would be possible, however the curved contour of the clippers helps achieve the overall shaping of the brush. P.S. Give the brush a thorough clean after trimming to remove any remaining loose bits before using, I forgot to Jim