Depending on in-laws and where. Have two sets of toilets/showers. One for you and one squat. If while you are away they don't use the squat then replace.
Also you may consider a separate en suite for yourself and keep it locked.
If you have anything personal like a motorbike, chainsaw or tools or...build yourself a separate lockable secure shed. 20ft container?
No one on TD is gay. If suspect, it was probably because of the way they were reared.
I apologize if any offence was caused. unless it was intended.
You people, you think I know feck nothing; I tell you: I know feck all