Many employers encourage their employees to volunteer with non profits (I am actually forced to do that by my employer
You can always list it on your resume as "Community Service"... i think it is admirable rather than punishable....
On the other hand, moonlighting, and working for pay a second job could be an indicator that you are looking for more opportunities and more challenge. I think that is also a good message to your company/boss. If they can't offer, you are willing to go elsewhere...
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