Should uncle avoid suspicion for younger siblings?

I think it's only four words to get along with my brother-in-law and sister-in-law, so stay at a respectful distance from others.

Although their relationship is still relatively close, but after all, men and women are different, this relationship is somewhat subtle, or stay at a respectful distance from sb.

Don't think that the boundary between two people is blurred by special speculation or other circumstances. Sometimes a small gesture or a joke may cause misunderstanding.

If you want to make the two families better, stay away from them.

Even if you don't respect it, sometimes the relationship between the two families can't be too harmonious.

If there is an uncle, it must be the family of two brothers. In general, there is not much harmony.