Nail polish remover is a weak acetone solution.
You could try that, just treating the end 1/2 inch, then eave it a while. If it's degraded, cut it off. If no harm done, be braver.
Alternatively, keep the bonnet closed.
Unfortunately gone are the days of acetone based nail polish remover - the ladies complained that it made their nails and skin milky (so ive heard!) Its now Propanone based.