My kids are severely in need of attention

DJ and Adam walk downstairs while I'm at work on the computer. They are wearing adhesive metal brackets on their foreheads.

Me: What are you doing?
Adam: We're being bulls.
Me: You just look like silly kids with metal things on your heads.
DJ: Yeah, but we like to pretend.
Me: How old are you?
DJ: You know you want to laugh.
Me: I'm not going to.
DJ: Do you think it hurts to get your nostrils waxed?
Adam: I think you need to try it.
DJ: Be quiet. Bulls can't talk.