"Daddy do it"

I don't know if anyone else's toddler does this or not but Landon will be trying to do something, hand something to one of us or will want one of us to do something for him but will only want one of us to do it, not the other. And when his mind is set on the one he wants to do it, he makes sure that one does it. For example, we can be riding in the car and he will have his cup and when he is done he will say "all done" and start handing the cup forward, if he wants Daddy to take it and I go to get it then he will say "no, Dada do it" or vise versa. The other day at the park Brian and I were taking pictures and videos of Landon and I took the camera to take a video of Landon on the slide and he saw me with the camera and said "no, Dada" and came over to us fussing. So I gave the camera back to Brian and then later I took it again and he again did the same thing when he saw that I had the camera. I cannot get my video to upload so if i can get it working I will put it on here.