"Kennedy ground, JB 123, holding short of B."
Silence.
Pause -
"Kennedy ground, JB 123."
Silence.
"Kennedy ground, JB 123."

"JB 123, Kennedy ground, go ahead."

"We're holding short of Bravo and were told to wait for your call."

?!?!?

Kennedy ground - "well I guess thanks for telling me that ..."

FO and I look at each other and start chuckling.