In Nellie Akalp's article "Five Ways to Sabotage Your Liability Protection After Incorporation," (full article here: http://smallbiztrends.com/
1. Negligence and Personal Liability
Ex: "If you’re driving to a client meeting in a company car and are negligent and hit someone, you can be personally liable for any injuries and damages."
Ex: "If you claim that your glass container is BPA-free when actually it does contain BPA."
3. Personal Guarantee on Business Loans
Ex: A bank requires you to sign a "personal guarantee" on a loan for your start-up.
4. “Piercing the Corporate Veil”
Ex: If you show little or no separation between your personal and business finances.
5. Conducting Business Out of State
Ex: Your corporation is based in one state and, without filing, you open a remote office in another state.