Of course nails are tough as they have to be hammered in. Now I am wondering, " What nails are we talking about?" Could it be toe nails as I do mine? When my mother was a younger senior she stated that the best time to trim her nails was after a shower.
Twenty years later she still observed that advice with a modification. By the time she has finished the nails on one foot, the ones on the other are no longer as pliable and will have to be done after the next shower. Tough codgers can be cute.
Worker Bee on the Cosmos