The night-vision goggles, not to mention the taser. But she's not going to dwell on those details when it turns out there's actually a bigger issue at the heart of this, and maybe it's a sign of progress that Beckett chooses to share this next part with him - in herself, in their relationship, whatever it is. Or maybe it's just an attempt to get that look of incredulity off his face.

"Oh, and then to top it off, you are now building theory with her."

It's not that she doesn't wait for much of a reply from him; actually, she doesn't wait for a reply at all, but this has all been bubbling up inside her and now the lid has blown off and it's spilling out of her before she can think to button up.

"You're supposed to building theory with me. You're supposed to be on my team."