> Familiarity breeds contempt.
This is actually encoded into a common expression in Nothern Sotho. In the infinitive go tlwaela the meaning is to get use to or to grow accustomed to something. But when you say O a ntlwaela, as in: "You are getting used to me," you are actually telling the person that they are being contemptuous.
In fact, this principle is so well developed in the Northern Sotho language that you can even use the phrase for someone that is not in fact accustomed to you. For example, I was at the recycling site the other day and this guy came up to me and was pissed that I came in and didn't do what he wanted me to do (which could have been a fair objection) but he also as a side remark called me racist. To which I responded, "O a ntlwaela." In context, what I am really saying would be that he is stereotyping me. His response, realising he made a mistake, was to just deny it without substantiation, as in "Ke go tlwaela bjang?" Essentially he was saying: "How am I being familiar with you?"
The answer was of course that he was calling me racist because I reminded him of someone else; i.e., a steriotype he was used to. In any case, I did not point this out any further and just left.