Me: in a hurry as aways, 20 mouths waiting to be fed on christmas day, so I tried to open the hole in the potatoebag with my fingers. After two days my thumb was dobblesize and the second time (the first time I felt so stupid going to the ER with a thumb! and turned back home half way there) so, in the evening I went again, waited for four hours and came home like that for ten days. The ten days are over and the thumb is nearly normal size again, fully useable and minimal hurting. There was a little bone splitting. So: USE SISSORS, not your fingers.!