I have to say I'm not really liking Reginald. At best he's pretty boring and at worst he's... kind of like what Klaus was in the pilot. Remember how we all hated him, and then they wisely scaled him back? Yeah. Reginald is not good. He was good as a one-time gag. If this is all they can come up with for Hayley, they're better off ignoring her again.
The head explode thing was awesome, but unfortunately I had it spoiled for me as a random animated GIF on a forum, so I basically couldn't experience the entire punchline of the episode.