Anesthetic

A substance which inhibits your ability to feel pain which is considered optional by 20%-40% of healthcare professionals excluding dentists of which all actively avoid it's use and refuse to reschedule when it is out of stock.

Doctor: "Now sir, ordinarily you'd be under anesthetic whilst we insert this catheter in your urethra"
Patient: "can I reschedule?"
Doctor: "CaN i rEScHedULe? stfu pussy"