In New York, we tip everyone. We tip doormen, we tip cab drivers, and we tip bartenders at the bar. You'll get quite an evil eye if you don't leave a tip at the bar. ↗
In our tabulation of psychoanalytic results, we have classed those who stopped treatment together with those not improved. This appears to be reasonable; a patient who fails to finish his treatment, and is not improved, is surely a therapeutic failure. ↗