Barry watches Caitlin exit and the door slide closed behind her. Without even a 'heads up' warning Barry is pegged in the temple with the bar.

"Hey!" Rubbing the spot, more to pout about being roughed up by his friends than because it hurt, he picks up the bar and starts heading for the doorway.

"Fine. I'm going to get this blood sample going and then I've gotta run to Joe's place to check on him and Iris. I'll bring back Cisco's juice while I'm at it."