OK, this qualifies as an "other exotic lands" kind of post...hold on to your hats:
Reasons to avoid Boulder on April 20th:
1. Everything smells...let's just say everything smells "green"
2. Traffic is a nightmare because it is 4/20 (and no other reason).
3. On legit business at CU Boulder? You'll have to explain before they let you park.
For those of you not sure about the 4/20 culture, or unfamiliar to the extremes places like Boulder might take it, read more about it HERE.