Some consumers get very upset when they are served "bad food" at a restaurant. they lose their tempers and start yelling at the person serving them. sometimes, they even demand to see the manager. this lack of emotional control on the part of consumers suggests that these consumers have low

 Frustation Tolerance (LFT) Emotional Intelligence, emotional Self Regulation.

Explanation: It can be either of the above, in a sense that a person that lacks emotional self control may have either

1- Low frustation tolerance, which means when a person cannot tolerate unpleasent feelings,

2- Low Emotional Intelligence, which means when a person is not in control or is not able to manage his own emotions, or those of others, and-

3- Low Emotional Self Regulation which refers to how a person emotionally respond to situations in a manner that is socially tolerable.