I guess he was trying to be funny, I would hope that was it anyway, but judging by how long it took the person, whose question he was taking, to identify himself - I would say that person did not think it was funny at all. Hagel seems to be just another arrogant, disrespectful, blabbermouth much like Vice President Joe Biden and also like President Obama himself.
In the event you do not understand the reference to Obama as a blabbermouth, look here for one of the most recent examples of him diving right into something, by way of his arrogant and disrespectful blabbermouth, that he should have stayed out of:
If you do not understand what I mean about Biden being an arrogant and disrespectful blabbermouth, you are hopeless.
All the best,
Don't Bring A Hammer To A Car Fight
11 hours ago