This really is a game to Brendan. As soon as I put in his pacifier, he'll grab hold of it, yank it out and proceed to try to get it back in.
About half of the time, he will actually succeed in getting it back in his mouth but most of those times it's upside-down, sideways or just under his lip (not actually in his mouth). But even if he gets it in the right way, he'll just pop it back out. At first, I thought he didn't understand how to let it go once he got it in... but he can if he wants. He just doesn't want to usually. It's more fun to play with it and now throw it. Fun for him, not always me. He cracks me up though!