There was no mystery about what had happened though. One of those utensils had been a sharp kitchen knife that had ended up in the sink facing backward but I was unable to see the danger this posed to me because of the soap suds.
Fortunately, I was able stanch the bleeding successfully and was able to get to the medicine cabinet in time to smear some Neosporin antiseptic ointment on my wound. I can't recommend that stuff more.
I'm hoping this will all be over with in another day or so but it's still an unpleasant experience to endure.