
Yes, but at this point,
pretty much any CUSTOMER does.
The Big Bang Theory Season 7, Episode 13

Yeah, you're my first CUSTOMER today.
The Big Bang Theory Season 6, Episode 1

Or as you may know him,
Dave from AT&T Customer Service.
The Big Bang Theory Season 3, Episode 4

He could be the first CUSTOMER.
Breaking Bad Season 4, Episode 5

I spent two and a half hours on hold
with Hewlett-Packard CUSTOMER service...
The Big Bang Theory Season 3, Episode 17