Several wiki pages about hiring/firing/quitting refer to "employment contracts". What are typical terms of employment contracts?
Some companies demand that employees make explicit promises that they are working in the best interest of the company. Some examples of "loyalty oaths" are
Most employees want to make a genuine effort to act ethically toward their employers, but being asked for an explicit promise to do so is an indication that the employer does not AssumeGoodFaith from the employees. In such cases, the employees should not AssumeGoodFaith from the employer. Employers who demand loyalty oaths from employees rarely demonstrate any reciprocal loyalty.
When an employer institutes a new LoyaltyOath?, watch out! Such oaths are often immediately followed by additional demands on employees (longer working hours, reductions in pay or benefits, etc.), or terminations of those "disloyal" employees who refuse, who complain, or who act in a manner somehow inconsistent with the terms of the oath.
See also EmploymentContract, TheyCanFireMe
Guys, it's even worse in other fields. Apparently, your regular medical contracts have things along the lines of:
I have noticed that the biggest problem with most employment contracts I've seen is OverlyBroadIntellectualPropertyAgreements.
I think that it is reasonable to give up the right to any inventions you have with employer resources. The best contracts are equitable - if you need to give them 2 weeks notice to quit, they need to give you 2 weeks to fire you. I've never seen such equitable contracts, however.
Many times they state that you can't disclose any of the proprietary information you have acquired while working for the company. You may also be restricted from directly doing business with the clients of the customer - i.e. you build the relationships with the clients, then quit and start a new company with your relationships that you've developed. Sometimes there's a no-compete clause.
They often say that they won't enforce it, that it's just there to protect them, etc. Then why is it in your contract for the first place?
The best way to deal with these contracts is to get a lawyer. To have them work over a contract is actually pretty easy, much cheaper than suing somebody and definitely a cost-effective way to avoid later problems. Generally they also know the best way of getting the contract changed without going through the company legal department, who are programmed to screw people as hard as possible.
Note: this is presumably all about US contracts. In the UK, we have more legal rights than this -- e.g there's a prohibition on "restraint of trade" which prevents the more over the top non-compete clauses, and also (it seems) "common practice" is to have less draconican contracts anyway
For a refreshing version of an EmploymentContract, check out: http://www.simplerwork.com/contract.htm