Ask HN: Do you code on personal/side projects during breaks at work?

Just wondering about this. Work+commute time ensures that I don't get home on weekdays with plenty of hours left and I am one of those who needs at least 7 hours of sleep at night or I am a zombie in the morning. So all nighters are kinda tough.

Do you code on personal/side projects while at work but during lunch/break time ? What are the legal implications if any ?