[meira]

Is the second job "official"? Here in Brazil, no office rule can force you to disclosure to your employeers of other gigs (unless you work for government). Here, you sell 8 hours of your day and what you do in the free time is up to you (neither a NDA can change this).

[muse900]

No its not official, am pretty certain though that here in the UK they can fire you and even get you to the court if they have proof that you work for someone else.