...in fact I did!
Half an hour later, one of our group pointed at new marks on my shirt and asked was I bleeding? Curious I thought, as I looked again at my chest and then noticed some discharge from beneath the bandage protecting my recent wide excision. It didn't look like blood but it seemed the wound was now weeping.
I took myself off to an after hours Medical Centre where the Doctor confirmed my wound had become infected. He prescribed antibiotics for the next week and the nurse rebandaged me so tightly that I look like the invisible man.