I don’t like people who take drugs...

I don’t like people who take drugs, for example: airport security.

This is a joke that is centered around the ambiguity of human language (a pun). The joke is that the person who hears the joke first assumes that the jokester dislikes people that use drugs, however the example makes it clear that the jokester actually dislikes people that confiscate drugs.

Since take is a fairly general purpose verb in English, both understandings of the sentence are perfectly reasonable.