School and Class MANY times durning High School but it was more "walk off campus durning lunch and not draw attention to your self" than actual Sneaking.
College - ALL the TIME, but that's standard
Work - More than I care to admit but it was always done on Fridays to avoid the come in Saturday conversation.
I was told on my first day, "everyone likes a Hard worker." That's right because they DO ALL THE WORK!