...Cobra Commander?

[Well, that certainly got his attention in short order.]

You're in luck, then; he's the one I've been employed by, of late - he's definitely here, though I can't say I know where he's gone, exactly.

[Probably best to not tell you that your fearless leader's had a habit of ending up in jail lately; not exactly the best for boosting morale.]

That said, however - what's your favored method? Regarding, ah..."making things go boom", as you put it.