It is vital to know where the problem is.
If it is the lack of knowledge, he should go to seminars of some sort or he should do something in his free time.
If he has problems with coworkers or his boss, they should sit down and discuss it.
You should tell us more about the specific problems so that we could advise you.
If the coworker is your boss or somehow superior to you in rank, then do not correct them in front of the visitor. I myself have gotten in trouble for doing that myself and have learned my lesson. If it is a coworker that has the same authority that you do, then unassertively suggest the correct answer. For example say, "Joe, I believe that it's...." or "Are you sure? I thought you had to...." If the coworker is still adamant in his or her information, don't push it because it would be unprofessional to bicker and fight in front of a customer/visitor. Either wait for that person to walk away and discuss it and maybe you can chase them down if its that important, or discuss it with your superior if you think the coworker is being stubborn about issues like this.
coworker's paycheck
If you are a student then you have no right to do this to your teacher. Doing this would only benefit the spouse. The school system should have no rights to do this either. The teacher could sue.
reading and writing
die
biting someone
Yes i am :) Sometimes i am in the mood to consume human flesh. Of course i have never gone about doing it. I would get in trouble and do not want to kill a person or offend someones dead. You can't get it fresh. :)
Would love to help you, but you need to be more specific. What is the car doing or not doing.
A few coins. Not worth the trouble, really. I would do the quests for the fun of it, mainly, and for the honor of having a certain amount of quest points.A few coins. Not worth the trouble, really. I would do the quests for the fun of it, mainly, and for the honor of having a certain amount of quest points.A few coins. Not worth the trouble, really. I would do the quests for the fun of it, mainly, and for the honor of having a certain amount of quest points.A few coins. Not worth the trouble, really. I would do the quests for the fun of it, mainly, and for the honor of having a certain amount of quest points.
ineffective
The opposite of trouble (disharmony) would be peace or harmony.The opposite of to trouble (make troubled or anxious) would be to ease.The opposite of trouble (having difficulty) would be ease, facility or effortlessness.(Ease and trouble will rarely use the same grammatical structure, because the adjective easy is much more common.)
A coworker