Anger

It may not be appropriate to reject a person if their Rebbe or teacher indicates during your initial contacts that he gets angry on occasion. True, anger is a bad trait. However, if that is his only bad trait, and if his anger is within reason, then you may want to consider whether you can deal with it. After all, nobody is perfect, and you are now aware of the partner's only bad point. Furthermore, even some calm people do get angry on occasion.

Can you expect the degree of anger to be noticeable or even recognizable during your first dates? That is unlikely - unless it is a serious problem indeed.

It may also not be noticeable to those whom you question. After all, many young adults are not not likely to reveal their full anger in the presence of their Rebbe or teacher.

If the Rebbe or teacher does indicate that the person has a tendency to get angry, should this be a warning sign for the future? Not necessarily.

Any other single (negative) trait follows the same reasoning. They are likely to be more restrained in the presence of a Rebbe or teacher, so it is difficult to judge based on the Berurim.

Other traits

The list of positive or negative traits is endless. However, they can be separated into hereditary and environmental issues. Hereditary issues are difficult to control. Environmental issues may be controlled - but with difficulty.

Is a temper hereditary? Is overweight hereditary? Is smoking hereditary?

Although these questions may be difficult, children are clearly influenced by parents who have a temper, a weight problem, or who smoke.

Are these reasons sufficient for deciding whether to marry a potential person?

Not really. You and your confidant should weigh the candidate's cadre of qualifications against your own list to determine their relative importance.