Over the last few weeks dd2 has got into the habit of walking into our room without knocking, which I think is fine if the door is open but not if it's shut. Last week When she did it I told her again to knock and said you might see something you'd rather not. She said sorry, so all fine.
This morning I was woken to the sound of the door shutting and then a little while later she just walked in. DH told her again she should knock, she apologised. Only to do it again ten minutes later so I told I got a bit cross and said we could have been having sex. Have I traumatised her? She shuddered, said yuk and wandered off.