I bred our big doe back to OldMan yesterday. Last time I bred them, the buck did his thing grunted and fell over. The second time that same day he just kinda slid over onto his side when he was finished, not quite as dramatic but still funny. Yesterday, he didn't do any of that. He mounted and maybe 5-10 seconds later just hopped down. He remounted almost right away, same ending. We tried again in the afternoon with the same results only this time he started nipping at her and he stayed mounted for much longer. She was a very good girl the whole time, but I'm wondering if the deed was actually even done. Is it normal for the Buck's beeding behavior to change, or should it always be the same?