Greg: So, we meet again. Lita Gibbons wasn't putting this on her nipples, was she?
Sara: You have been drinking too many Thug Passions. The woman is twice your age. She may be three times your age, Greg.
(Greg chuckles and waves his hand)
Greg: Old case. Sorry.
Greg references the case (a trick and roll) Nick had to solve in the "Pilot."