In discussions, "Bezness" is often being used as a synonym for "criminal", but this is not always and entirely true.
It is correct, that, the longer a "Bezness" is going on, the probability for criminal acts is inreasing (Threatening, Force, Blackmail, Theft, Children abduction, etc.), but Bezness is, per se, not automatically criminal - in the same way in that someone who spends his holiday on the seaside will not automatically go swimming in the sea, it is very probable, but not certain, that he will.

Bezness is, closed looked at, like a game. In this game, one side, the Beznesser, tries to achieve his goals by letting the other in the dark about his goals, in fact, he will even assume that the other side is also having hidden goals of which he is not aware of.
In many cases, "Bezness" does not even start as such, but happens, because one side misinterprets the goals of the other side and assumes that the "counterpart" is also playing to win (gain more).
Often, there will not even be a discussion about it, because the opposing cultural views are not realized by the parties and each side assumes that there is an unspoken agreement about certain things. For example, a bezness man, who is starting a relationship with a quite unattractive woman is often convinced that he is entering an unspoken "business" in which his affection will be rewarded with money (like someone who enters a taxi is assuming that the taxi will drive him to his destination) - the woman receives a lover and the man receives money or a visa.

Especially the "lover" features of a man play a big role in Tunisia (and are mostly overrated and overestimated by themselves). Many tunisian men are, for example, absolutely convinced that western women start a relationsship with a tunisian man predominantely because European men can only deliver rare or bad sex (because they are "cold").
And this results then in that they expect a high reward for their exceptional "abilities" - unspokenly of course, as mentioned above.

Most Westerners are not familiar with such thoughts (they view an other culture from their own cultures view only) and assume instead, that they always find genuine interest and affection.
In other words, the source of  most relationship problems (and also bezness attempts) is a result of  ignorance and misinterpretation - and even if there would be some understanding, it would be almost impossible for someone to accept the views of a totally different culture.