A quarter shot cappuccino?

I’m a manager at a specialty coffee shop and a customer asked me for a quarter shot cappuccino this morning.

I’m sorry. But what is the point? You’ve basically just paid 3.70 for 12oz of milk? Also, how do you expect us to measure a quarter of a shot 😭

Am I being OTT or was she just being difficult?!

To add, it was extremely busy, so might’ve been also a little stressed.