Daniel is so playful he's downright giddy. Sam's missing and Jack's whining that Daniel shouldn't go off to rescue her, because the bad guys might be waiting and Daniel might...get...hurt. Add to this the penis zat shot:
Yes, that does appear to be a giant dildo pointing at Jack's face. If you squint it maybe looks like the zat gun Daniel is holding in the scene...but you'd be wrong. It is, actually, that giant dildo you thought you saw in the first place. My conclusion is that Jack and Daniel have started a shiny new sexual relationship which began after we see them so cosy during the previous episode's wedding scene (Sacrifices), this is something I'm supposed to see because it is so very much canon. This makes me happy. It also makes me wonder if I should delete recent posts about Ronon shagging Daniel, because Jack is going to kill me.
He's not real, right?