Even if you are morally, ethically, and legally justified in carrying a weapon, carrying a weapon may still be a poor choice. The decision to carry a weapon will affect the life you lead, but the life you lead should also affect your choice to carry. If you've come this far and decided that you still want to carry, consider these factors before you do so.
Many companies have policies that actively discourage or forbid employees from carrying weapons while working. Even if it doesn't, the culture of your work may simply frown upon it. Will you tell your colleagues that you're armed? Your boss? How are they likely to react? Are you prepared to speak intelligently about your choice to carry a weapon? Do you wear a uniform on the job? Will the uniform allow you to carry your weapon of choice in an accessible place?
How you dress is going to impact how easily you can conceal a weapon. It's tough to hide a firearm if you're sitting around in a bathing suit all day, for example. While most Bostonians don't have that luxury, you may discover that the weapon you want to carry doesn't fit anywhere on your person. Alternatively, it might be that you're dressed in so many layers of clothing that it will be impossible for you to access anything in any reasonable amount of time.
What do you do in your free time? Where do you do it? With whom?
Partying on Landsdowne Street six days a week might be a blast, but it also means you're constantly around large crowds of people under the influence of alcohol and drugs (let's be realistic here). That's not the type of environment that promotes critical thinking, and it does promote rash decisions. If you're around that kind of environment, will you stay calm in face of unreasonable people?
Forget ethics and law for a moment; what are you like as a person? Are you generally calm under pressure?
Lawrence Kane tells a fascinating story about a woman he knew who, despite being an accomplished markswoman, gave away all of her guns. She realized that her temper was such that she was far too likely to use them for the wrong reasons, and so she stopped carrying them.
If you have issues controlling your temper, don't carry a weapon.
If you're inclined to show off, and are likely to wave around your weapon to seem "cool" or "tough", don't carry a weapon.
The decision to go armed is a huge one--you are giving yourself the ability to seriously hurt or kill someone. Don't enter into it lightly.