I imagine she used the bathroom door like everyone else does to get into the bathroom.
You should not have abused you sister whether you knew how she got there or not.
There was something wrong with you for doing that.
Is that why you are not supposed to be around females?
Why do you say that I am not supposed to be around females? I chose not to be married, like Jesus and Paul. I agree that something was wrong, including my abusing my sister as long as it occurred. I can't say that I understand everything that happened in that bathroom, and I do know that I do not know about how locks work on bathroom doors. She should not have been there, and I tried to accommodate. There should not have been sin, but I know that there was. I am guilty for what I did. I found out my sin, and about temptation, but that is an embarrassing word with my a sister even if a person would ever say that anything sexual could be learned with a sister. I have never had sex, and I would say there was abuse even sexual abuse for lack of a word to describe it and knowing that it did affect me and with knowledge that it did affect her. Because it did I would classify it as rape and incest even though no sex took place, because I care about and value her and do not wish any harm to come upon her, and in the interest of full disclosure of my sin, however much of it was in the mind, but not that. In other words, marriage is not for brother and sister, but even with no sex something sexual took place that affected her. I have fought with something for most of my life, and I have some or great victory. I do not know the reason for it. But I observe God's Law in regard to it. There is only sin if a person does not do what God's Law requires (in regard to a nocturnal or seminal emission), but there can be something more than what appears to a man outwardly (he (a man, myself) does not see all that is happening or involved in what he struggles with or deals with). I realize that I was a child, but I was older (that her), and it was sin. I discovered that. I am uncertain at what point she was able to come to that realization. But it was not my job to teach her about it, even though I don't know what I could have done to save or rescue her from me. There is more to this than just saying no. I must have somehow been in a vulnerable position for this to have occurred. Maybe not.
As for being around females, I am a Jewish man and a man and a woman in the same room is seen to be something for marriage and I am not intending to get married. I have an interest in becoming President of the United States of America and in making aliyah. I am a proselyte and a convert to Israel and Judaism. I am a Citizen of the United States of America, having been born here. I do not have a problem with women, young ladies, young women, girls, females, etc..., but I should be sharing the gospel with men not their potential life partners wives or brides. I do have a desire to be a Rabbi and I have been called a Rabbi. I do not like the idea of getting caught up in a conversation with a woman. I have chosen the tribe of Levi. I choose not to. I have spoken with some women, but it is not my practice or what I desire to do. Sometimes it is more than acceptable. God creates those times when being in community involves more than just men.
Thanks for asking.