Cut the cheese?

Last night I went to slice some cheese for grilled cheese sandwiches.  The cheese was super soft so I went to pull the slicer with more force and it slide over the cheese into my thumb.  So painful!!  I called Steve that maybe he should come home.  I was hoping I could stop the bleeding so I could put a bandaid on it.  After an hour it still hadn't stop.  I got 5 stitches.