Numb Thumb Dum Dum

(A customer comes into the pharmacy and approaches the back desk.)

Pharmacist: “Good afternoon. How can I help you?”

(The customer raises their hand and shows the pharmacist their hand, their thumb is blue and turning a dark colour.)

Customer: “Oh, hi. The other day I accidentally smacked my thumb with a hammer and it’s gone blue and I can’t feel anything… Should I go see a doctor?”